Peak Torque and Horsepower
Ranking | Peak TQ | Ranking | Peak HP | ||
1st | AFR Titon | 510 | 1st | AFR Titon | 484 |
2nd | Edelbrock 7501 | 508 | 2nd | Edelbrock 7501 | 474 |
3rd | Edelbrock EPS 2701 | 506 | 3rd | Jegs Champion | 471 |
4th | Edelbrock RPM 7101 | 504 | 4th | Edelbrock RPM 7101 | 470 |
4th | Weiand Warrior 8501 | 504 | 5th | Pro. Prod 52021 | 469 |
4th | Edelbrock 2601 | 504 | 5th | Summit 226014 | 469 |
7th | Summit 226010 | 503 | 7th | Weiand 8150 | 467 |
8th | Summit 226014 | 502 | 8th | Weiand 8501 | 466 |
8th | Weiand Warrior 8150 | 502 | 9th | Edelbrock 7104 | 465 |
8th | Weiand 8120 | 502 | 9th | TFS Street Burner | 465 |
11th | TFS StreetBurner | 501 | 11th | Summit 226010 | 464 |
11th | Edelbrock 7104 | 501 | 11th | Dart SHP | 464 |
11th | Dart SHP | 501 | 13th | Weiand 8125 | 463 |
11th | Weiand 8125 | 501 | 14th | Edelbrock 2701 | 461 |
15th | Chevy ZZ4 | 500 | 15th | Weiand 8120 | 459 |
15th | Jegs Champion | 500 | 15th | Summit 226012 | 459 |
17th | Pro. Prod. Typhoon | 499 | 17th | Edelbrock 2601 | 458 |
18th | Summit 226012 | 498 | 17th | Pro. Prod. 52013 | 458 |
19th | Prof. Prod. 52013 | 497 | 19th | Pro. Prod. 52026 | 457 |
20th | Prof. Prod. 52026 | 496 | 19th | Chevy Iron | 457 |
21st | Edelbrock 2101 | 494 | 21st | Edelbrock 2101 | 456 |
21st | Chevy Iron | 494 | 22nd | Chevy ZZ4 | 451 |
23rd | Pro. Prod. Cyclone | 487 | 23rd | Pro. Prod. 52001 | 436 |
Short Manifolds (Less Than 5.00 Inch Carb Pad Height)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
Edelbrock EPS | 2701 | $139.95 | 506 | 461 | 466.2 | 4.80 | 476 |
Edelbrock Air Gap | 2601 | $225.95 | 504 | 458 | 464.7 | 4.92 | 478 |
Chevrolet ZZ4 | 10185063 | $239.95 | 500 | 471 | 464.5 | 4.95 | 467 |
Weiand Street Warrior | 8125 | $151.95 | 501 | 463 | 463.5 | 3.65 | 470 |
Weiand Street Warrior | 8120 | $134.95 | 502 | 459 | 462.8 | 4.62 | 471 |
Summit Stage 1 | 226012 | $131.95 | 498 | 459 | 461.0 | 4.65 | 468 |
Edelbrock Performer | 2101 | $157.95 | 494 | 456 | 459.1 | 4.60 | 470 |
Prof. Prod. Cyclone | 52001 | $143.95 | 487 | 436 | 449.3 | 4.72 | 471 |
Medium Manifolds (5.00 to 5.30 Inches Carb Pad Height)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
AFR Titon | 4804 | $579.00 | 510 | 484 | 473.6 | 5.29 | 467 |
Edelbrock Air Gap | 7501 | $234.95 | 508 | 474 | 471.2 | 5.26 | 473 |
Edelbrock RPM | 7101 | $174.95 | 504 | 470 | 468.3 | 5.25 | 474 |
Weiand Warrior | 8501 | $217.95 | 504 | 466 | 466.3 | 5.24 | 471 |
Summit Stage 3 | 226010 | $182.95 | 503 | 464 | 465.6 | 5.25 | 471 |
Edelbrock RPM Q-Jet | 7104 | $199.95 | 501 | 465 | 465.3 | 5.25 | 471 |
Summit Stage 2 | 226014 | $132.95 | 502 | 469 | 464.9 | 5.18 | 466 |
Weiand Speed War | 8150 | $145.95 | 502 | 467 | 464.9 | 5.18 | 467 |
Jegs | 513000 | $ 99.99 | 500 | 471 | 464.5 | 5.29 | 462 |
Professional Products Crosswind | 52026 | $199.95 | 496 | 457 | 459.5 | 5.24 | 469 |
Tall Manifolds (5.30 Inches and Taller)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
Professional Products Typhoon | 52021 | $162.95 | 499 | 469 | 465.3 | 5.33 | 471 |
TFS StreetBurner | 30400222 | $224.95 | 501 | 465 | 465.2 | 5.39 | 473 |
Dart SHP | 42811000 | $231.70 | 501 | 464 | 463.7 | 5.52 | 470 |
Professional Products Cyclone-Plus | 52013 | $177.95 | 497 | 458 | 461.0 | 5.37 | 471 |
Chevy Iron | 14096011 | $261.06 | 494 | 457 | 459.0 | 5.45 | 468 |
DYNO RUNS WITH CAM NO. 1 | |||||||||||
TPI Manifold | Holley Single-Plane | GM Ram Jet | Holley Stealth Ram | ||||||||
RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP |
2,400 | 423.4 | 193.5 | 2,800 | 391.8 | 211.3 | 2,900 | 411.5 | 226.3 | 2,900 | 425.1 | 233.1 |
2,500 | 430.0 | 204.7 | 2,900 | 386.4 | 213.4 | 3,000 | 416.8 | 238.1 | 3,000 | 428.3 | 244.6 |
2,600 | 441.8 | 218.7 | 3,000 | 387.9 | 221.6 | 3,100 | 419.6 | 247.7 | 3,100 | 426.3 | 251.6 |
2,700 | 453.1 | 233.0 | 3,100 | 414.7 | 244.8 | 3,200 | 421.4 | 256.8 | 3,200 | 425.2 | 259.0 |
2,800 | 457.4 | 243.9 | 3,200 | 420.7 | 256.3 | 3,300 | 420.9 | 264.5 | 3,300 | 424.5 | 266.8 |
2,900 | 457.0 | 252.4 | 3,300 | 426.3 | 267.9 | 3,400 | 420.8 | 272.4 | 3,400 | 422.2 | 273.3 |
3,000 | 458.4 | 261.8 | 3,400 | 426.1 | 275.8 | 3,500 | 418.6 | 278.9 | 3,500 | 421.4 | 280.8 |
3,100 | 464.4 | 274.1 | 3,500 | 426.2 | 284.0 | 3,600 | 418.0 | 286.5 | 3,600 | 422.2 | 289.4 |
3,200 | 472.1 | 287.7 | 3,600 | 426.5 | 292.4 | 3,700 | 418.4 | 294.7 | 3,700 | 424.8 | 299.3 |
3,300 | 475.8 | 299.0 | 3,700 | 429.9 | 302.9 | 3,800 | 421.1 | 304.7 | 3,800 | 428.5 | 310.0 |
3,400 | 474.6 | 307.2 | 3,800 | 434.6 | 314.4 | 3,900 | 425.2 | 315.7 | 3,900 | 431.3 | 320.3 |
3,500 | 472.0 | 314.5 | 3,900 | 440.2 | 326.8 | 4,000 | 430.4 | 327.8 | 4,000 | 431.1 | 328.4 |
3,600 | 468.2 | 320.9 | 4,000 | 445.3 | 339.1 | 4,100 | 433.3 | 338.2 | 4,100 | 431.3 | 336.7 |
3,700 | 470.0 | 331.3 | 4,100 | 446.8 | 348.8 | 4,200 | 436.6 | 349.2 | 4,200 | 432.5 | 345.8 |
3,800 | 478.2 | 346.0 | 4,200 | 447.2 | 357.6 | 4,300 | 435.0 | 356.2 | 4,300 | 435.6 | 356.7 |
3,900 | 483.9 | 359.3 | 4,300 | 446.7 | 365.7 | 4,400 | 434.5 | 364.0 | 4,400 | 439.6 | 368.3 |
4,000 | 486.6 | 370.6 | 4,400 | 447.4 | 374.8 | 4,500 | 433.4 | 371.3 | 4,500 | 445.0 | 381.3 |
4,100 | 483.1 | 377.1 | 4,500 | 447.9 | 383.7 | 4,600 | 434.0 | 380.1 | 4,600 | 448.7 | 393.0 |
4,200 | 479.5 | 383.5 | 4,600 | 450.0 | 394.1 | 4,700 | 436.1 | 390.3 | 4,700 | 450.8 | 403.4 |
4,300 | 474.4 | 393.0 | 4,700 | 449.4 | 402.1 | 4,800 | 437.9 | 400.3 | 4,800 | 453.7 | 414.6 |
4,400 | 469.2 | 393.1 | 4,800 | 451.3 | 412.5 | 4,900 | 441.0 | 411.4 | 4,900 | 453.4 | 423.0 |
4,500 | 462.2 | 396.0 | 4,900 | 451.5 | 421.3 | 5,000 | 443.0 | 421.7 | 5,000 | 453.4 | 431.6 |
4,600 | 457.4 | 400.6 | 5,000 | 450.3 | 428.7 | 5,100 | 444.9 | 432.0 | 5,100 | 451.5 | 431.6 |
4,700 | 454.6 | 406.8 | 5,100 | 448.7 | 435.7 | 5,200 | 444.6 | 440.2 | 5,200 | 449.8 | 445.4 |
4,800 | 449.5 | 410.8 | 5,200 | 448.0 | 443.5 | 5,300 | 442.6 | 446.7 | 5,300 | 445.6 | 449.7 |
4,900 | 444.1 | 414.4 | 5,300 | 444.9 | 449.0 | 5,400 | 438.0 | 450.4 | 5,400 | 440.2 | 452.6 |
5,000 | 437.2 | 416.3 | 5,400 | 442.4 | 454.9 | 5,500 | 434.5 | 455.1 | 5,500 | 434.0 | 454.5 |
5,100 | 427.4 | 415.0 | 5,500 | 434.9 | 455.4 | 5,600 | 430.4 | 458.9 | 5,600 | 426.9 | 455.2 |
5,200 | 415.2 | 411.0 | 5,600 | 426.9 | 455.2 | 5,700 | 425.7 | 462.0 | 5,700 | 420.9 | 456.8 |
5,300 | 401.5 | 405.2 | 5,700 | 420.9 | 456.9 | 5,800 | 419.8 | 463.6 | 5,800 | 414.1 | 457.3 |
5,400 | 389.5 | 400.5 | 5,800 | 415.2 | 458.5 | 5,900 | 413.5 | 464.5 | 5,900 | 406.9 | 457.1 |
5,500 | 378.3 | 396.2 | 5,900 | 407.6 | 459.2 | 6,000 | 406.2 | 464.1 | 6,000 | 398.0 | 455.7 |
6,100 | 396.5 | 460.6 |
DYNO RUNS WITH CAM NO. 2 | ||||||||
Holley Single-Plane | GM Ram Jet | Holley Stealth Ram | ||||||
RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP |
2,900 | 418.6 | 232.3 | 2,900 | 422.6 | 232.3 | 2,900 | 430.6 | 238.9 |
3,000 | 417.9 | 238.7 | 3,000 | 421.5 | 240.7 | 3,000 | 430.6 | 246.0 |
3,100 | 420.2 | 248.0 | 3,100 | 422.0 | 249.1 | 3,100 | 430.1 | 253.9 |
3,200 | 419.1 | 255.4 | 3,200 | 421.8 | 257.0 | 3,200 | 429.6 | 261.7 |
3,300 | 417.6 | 262.4 | 3,300 | 419.4 | 263.5 | 3,300 | 427.3 | 268.5 |
3,400 | 415.6 | 269.0 | 3,400 | 417.4 | 270.2 | 3,400 | 424.4 | 274.7 |
3,500 | 414.6 | 276.3 | 3,500 | 415.1 | 276.6 | 3,500 | 419.7 | 279.7 |
3,600 | 413.4 | 283.3 | 3,600 | 412.9 | 283.0 | 3,600 | 415.8 | 285.0 |
3,700 | 414.0 | 291.7 | 3,700 | 409.7 | 288.6 | 3,700 | 415.0 | 292.4 |
3,800 | 415.2 | 300.4 | 3,800 | 414.1 | 299.6 | 3,800 | 420.6 | 304.3 |
3,900 | 419.4 | 311.5 | 3,900 | 420.1 | 311.9 | 3,900 | 429.1 | 318.6 |
4,000 | 427.0 | 325.2 | 4,000 | 428.8 | 326.6 | 4,000 | 433.2 | 329.9 |
4,100 | 435.6 | 340.1 | 4,100 | 433.9 | 338.7 | 4,100 | 440.5 | 343.9 |
4,200 | 441.7 | 353.2 | 4,200 | 435.7 | 348.4 | 4,200 | 445.3 | 356.1 |
4,300 | 441.0 | 361.1 | 4,300 | 432.9 | 354.4 | 4,300 | 445.8 | 365.0 |
4,400 | 439.3 | 368.1 | 4,400 | 432.5 | 362.4 | 4,400 | 447.0 | 374.5 |
4,500 | 439.4 | 376.5 | 4,500 | 433.0 | 371.0 | 4,500 | 449.7 | 385.3 |
4,600 | 441.6 | 386.8 | 4,600 | 433.5 | 379.7 | 4,600 | 452.4 | 396.3 |
4,700 | 443.2 | 396.6 | 4,700 | 437.5 | 391.5 | 4,700 | 455.3 | 407.5 |
4,800 | 445.5 | 407.2 | 4,800 | 440.1 | 402.3 | 4,800 | 458.2 | 418.8 |
4,900 | 448.1 | 418.1 | 4,900 | 444.5 | 414.7 | 4,900 | 460.1 | 429.2 |
5,000 | 451.8 | 430.1 | 5,000 | 448.3 | 426.8 | 5,000 | 459.9 | 437.8 |
5,100 | 452.7 | 439.6 | 5,100 | 450.8 | 437.7 | 5,100 | 459.4 | 446.1 |
5,200 | 452.2 | 447.8 | 5,200 | 453.1 | 448.6 | 5,200 | 458.4 | 453.9 |
5,300 | 453.0 | 457.2 | 5,300 | 452.0 | 456.1 | 5,300 | 458.2 | 462.4 |
5,400 | 450.4 | 463.1 | 5,400 | 448.2 | 460.9 | 5,400 | 454.8 | 467.7 |
5,500 | 447.5 | 468.6 | 5,500 | 447.7 | 468.8 | 5,500 | 452.7 | 474.1 |
5,600 | 442.9 | 472.3 | 5,600 | 444.3 | 473.7 | 5,600 | 448.8 | 478.5 |
5,700 | 439.0 | 476.5 | 5,700 | 440.5 | 478.1 | 5,700 | 446.0 | 484.0 |
5,800 | 433.6 | 478.8 | 5,800 | 435.7 | 481.2 | 5,800 | 439.0 | 484.9 |
5,900 | 426.2 | 478.8 | 5,900 | 428.7 | 481.5 | 5,900 | 431.5 | 484.7 |
6,000 | 419.4 | 479.1 | 6,000 | 421.7 | 482.7 | 6,000 | 422.9 | 483.2 |
6,100 | 409.3 | 475.8 | 6,100 | 412.4 | 478.7 | 6,100 | 414.6 | 477.8 |
Peak Torque and Horsepower
Ranking | Peak TQ | Ranking | Peak HP | ||
1st | AFR Titon | 510 | 1st | AFR Titon | 484 |
2nd | Edelbrock 7501 | 508 | 2nd | Edelbrock 7501 | 474 |
3rd | Edelbrock EPS 2701 | 506 | 3rd | Jegs Champion | 471 |
4th | Edelbrock RPM 7101 | 504 | 4th | Edelbrock RPM 7101 | 470 |
4th | Weiand Warrior 8501 | 504 | 5th | Pro. Prod 52021 | 469 |
4th | Edelbrock 2601 | 504 | 5th | Summit 226014 | 469 |
7th | Summit 226010 | 503 | 7th | Weiand 8150 | 467 |
8th | Summit 226014 | 502 | 8th | Weiand 8501 | 466 |
8th | Weiand Warrior 8150 | 502 | 9th | Edelbrock 7104 | 465 |
8th | Weiand 8120 | 502 | 9th | TFS Street Burner | 465 |
11th | TFS StreetBurner | 501 | 11th | Summit 226010 | 464 |
11th | Edelbrock 7104 | 501 | 11th | Dart SHP | 464 |
11th | Dart SHP | 501 | 13th | Weiand 8125 | 463 |
11th | Weiand 8125 | 501 | 14th | Edelbrock 2701 | 461 |
15th | Chevy ZZ4 | 500 | 15th | Weiand 8120 | 459 |
15th | Jegs Champion | 500 | 15th | Summit 226012 | 459 |
17th | Pro. Prod. Typhoon | 499 | 17th | Edelbrock 2601 | 458 |
18th | Summit 226012 | 498 | 17th | Pro. Prod. 52013 | 458 |
19th | Prof. Prod. 52013 | 497 | 19th | Pro. Prod. 52026 | 457 |
20th | Prof. Prod. 52026 | 496 | 19th | Chevy Iron | 457 |
21st | Edelbrock 2101 | 494 | 21st | Edelbrock 2101 | 456 |
21st | Chevy Iron | 494 | 22nd | Chevy ZZ4 | 451 |
23rd | Pro. Prod. Cyclone | 487 | 23rd | Pro. Prod. 52001 | 436 |
Short Manifolds (Less Than 5.00 Inch Carb Pad Height)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
Edelbrock EPS | 2701 | $139.95 | 506 | 461 | 466.2 | 4.80 | 476 |
Edelbrock Air Gap | 2601 | $225.95 | 504 | 458 | 464.7 | 4.92 | 478 |
Chevrolet ZZ4 | 10185063 | $239.95 | 500 | 471 | 464.5 | 4.95 | 467 |
Weiand Street Warrior | 8125 | $151.95 | 501 | 463 | 463.5 | 3.65 | 470 |
Weiand Street Warrior | 8120 | $134.95 | 502 | 459 | 462.8 | 4.62 | 471 |
Summit Stage 1 | 226012 | $131.95 | 498 | 459 | 461.0 | 4.65 | 468 |
Edelbrock Performer | 2101 | $157.95 | 494 | 456 | 459.1 | 4.60 | 470 |
Prof. Prod. Cyclone | 52001 | $143.95 | 487 | 436 | 449.3 | 4.72 | 471 |
Medium Manifolds (5.00 to 5.30 Inches Carb Pad Height)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
AFR Titon | 4804 | $579.00 | 510 | 484 | 473.6 | 5.29 | 467 |
Edelbrock Air Gap | 7501 | $234.95 | 508 | 474 | 471.2 | 5.26 | 473 |
Edelbrock RPM | 7101 | $174.95 | 504 | 470 | 468.3 | 5.25 | 474 |
Weiand Warrior | 8501 | $217.95 | 504 | 466 | 466.3 | 5.24 | 471 |
Summit Stage 3 | 226010 | $182.95 | 503 | 464 | 465.6 | 5.25 | 471 |
Edelbrock RPM Q-Jet | 7104 | $199.95 | 501 | 465 | 465.3 | 5.25 | 471 |
Summit Stage 2 | 226014 | $132.95 | 502 | 469 | 464.9 | 5.18 | 466 |
Weiand Speed War | 8150 | $145.95 | 502 | 467 | 464.9 | 5.18 | 467 |
Jegs | 513000 | $ 99.99 | 500 | 471 | 464.5 | 5.29 | 462 |
Professional Products Crosswind | 52026 | $199.95 | 496 | 457 | 459.5 | 5.24 | 469 |
Tall Manifolds (5.30 Inches and Taller)
Manifold | PN | Price | Peak TQ | Peak HP | Avg. TQ | Carb Ht. | TQ at 3,000 |
Professional Products Typhoon | 52021 | $162.95 | 499 | 469 | 465.3 | 5.33 | 471 |
TFS StreetBurner | 30400222 | $224.95 | 501 | 465 | 465.2 | 5.39 | 473 |
Dart SHP | 42811000 | $231.70 | 501 | 464 | 463.7 | 5.52 | 470 |
Professional Products Cyclone-Plus | 52013 | $177.95 | 497 | 458 | 461.0 | 5.37 | 471 |
Chevy Iron | 14096011 | $261.06 | 494 | 457 | 459.0 | 5.45 | 468 |
DYNO RUNS WITH CAM NO. 1 | |||||||||||
TPI Manifold | Holley Single-Plane | GM Ram Jet | Holley Stealth Ram | ||||||||
RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP |
2,400 | 423.4 | 193.5 | 2,800 | 391.8 | 211.3 | 2,900 | 411.5 | 226.3 | 2,900 | 425.1 | 233.1 |
2,500 | 430.0 | 204.7 | 2,900 | 386.4 | 213.4 | 3,000 | 416.8 | 238.1 | 3,000 | 428.3 | 244.6 |
2,600 | 441.8 | 218.7 | 3,000 | 387.9 | 221.6 | 3,100 | 419.6 | 247.7 | 3,100 | 426.3 | 251.6 |
2,700 | 453.1 | 233.0 | 3,100 | 414.7 | 244.8 | 3,200 | 421.4 | 256.8 | 3,200 | 425.2 | 259.0 |
2,800 | 457.4 | 243.9 | 3,200 | 420.7 | 256.3 | 3,300 | 420.9 | 264.5 | 3,300 | 424.5 | 266.8 |
2,900 | 457.0 | 252.4 | 3,300 | 426.3 | 267.9 | 3,400 | 420.8 | 272.4 | 3,400 | 422.2 | 273.3 |
The decision of which system to use depends on your plan for your Pontiac.
DYNO RUNS WITH CAM NO. 1 | |||||||||||
TPI Manifold | Holley Single-Plane | GM Ram Jet | Holley Stealth Ram | ||||||||
RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP |
2,400 | 423.4 | 193.5 | 2,800 | 391.8 | 211.3 | 2,900 | 411.5 | 226.3 | 2,900 | 425.1 | 233.1 |
2,500 | 430.0 | 204.7 | 2,900 | 386.4 | 213.4 | 3,000 | 416.8 | 238.1 | 3,000 | 428.3 | 244.6 |
2,600 | 441.8 | 218.7 | 3,000 | 387.9 | 221.6 | 3,100 | 419.6 | 247.7 | 3,100 | 426.3 | 251.6 |
2,700 | 453.1 | 233.0 | 3,100 | 414.7 | 244.8 | 3,200 | 421.4 | 256.8 | 3,200 | 425.2 | 259.0 |
2,800 | 457.4 | 243.9 | 3,200 | 420.7 | 256.3 | 3,300 | 420.9 | 264.5 | 3,300 | 424.5 | 266.8 |
2,900 | 457.0 | 252.4 | 3,300 | 426.3 | 267.9 | 3,400 | 420.8 | 272.4 | 3,400 | 422.2 | 273.3 |
3,000 | 458.4 | 261.8 | 3,400 | 426.1 | 275.8 | 3,500 | 418.6 | 278.9 | 3,500 | 421.4 | 280.8 |
3,100 | 464.4 | 274.1 | 3,500 | 426.2 | 284.0 | 3,600 | 418.0 | 286.5 | 3,600 | 422.2 | 289.4 |
3,200 | 472.1 | 287.7 | 3,600 | 426.5 | 292.4 | 3,700 | 418.4 | 294.7 | 3,700 | 424.8 | 299.3 |
3,300 | 475.8 | 299.0 | 3,700 | 429.9 | 302.9 | 3,800 | 421.1 | 304.7 | 3,800 | 428.5 | 310.0 |
3,400 | 474.6 | 307.2 | 3,800 | 434.6 | 314.4 | 3,900 | 425.2 | 315.7 | 3,900 | 431.3 | 320.3 |
3,500 | 472.0 | 314.5 | 3,900 | 440.2 | 326.8 | 4,000 | 430.4 | 327.8 | 4,000 | 431.1 | 328.4 |
3,600 | 468.2 | 320.9 | 4,000 | 445.3 | 339.1 | 4,100 | 433.3 | 338.2 | 4,100 | 431.3 | 336.7 |
3,700 | 470.0 | 331.3 | 4,100 | 446.8 | 348.8 | 4,200 | 436.6 | 349.2 | 4,200 | 432.5 | 345.8 |
3,800 | 478.2 | 346.0 | 4,200 | 447.2 | 357.6 | 4,300 | 435.0 | 356.2 | 4,300 | 435.6 | 356.7 |
3,900 | 483.9 | 359.3 | 4,300 | 446.7 | 365.7 | 4,400 | 434.5 | 364.0 | 4,400 | 439.6 | 368.3 |
4,000 | 486.6 | 370.6 | 4,400 | 447.4 | 374.8 | 4,500 | 433.4 | 371.3 | 4,500 | 445.0 | 381.3 |
4,100 | 483.1 | 377.1 | 4,500 | 447.9 | 383.7 | 4,600 | 434.0 | 380.1 | 4,600 | 448.7 | 393.0 |
4,200 | 479.5 | 383.5 | 4,600 | 450.0 | 394.1 | 4,700 | 436.1 | 390.3 | 4,700 | 450.8 | 403.4 |
4,300 | 474.4 | 393.0 | 4,700 | 449.4 | 402.1 | 4,800 | 437.9 | 400.3 | 4,800 | 453.7 | 414.6 |
4,400 | 469.2 | 393.1 | 4,800 | 451.3 | 412.5 | 4,900 | 441.0 | 411.4 | 4,900 | 453.4 | 423.0 |
4,500 | 462.2 | 396.0 | 4,900 | 451.5 | 421.3 | 5,000 | 443.0 | 421.7 | 5,000 | 453.4 | 431.6 |
4,600 | 457.4 | 400.6 | 5,000 | 450.3 | 428.7 | 5,100 | 444.9 | 432.0 | 5,100 | 451.5 | 431.6 |
4,700 | 454.6 | 406.8 | 5,100 | 448.7 | 435.7 | 5,200 | 444.6 | 440.2 | 5,200 | 449.8 | 445.4 |
4,800 | 449.5 | 410.8 | 5,200 | 448.0 | 443.5 | 5,300 | 442.6 | 446.7 | 5,300 | 445.6 | 449.7 |
4,900 | 444.1 | 414.4 | 5,300 | 444.9 | 449.0 | 5,400 | 438.0 | 450.4 | 5,400 | 440.2 | 452.6 |
5,000 | 437.2 | 416.3 | 5,400 | 442.4 | 454.9 | 5,500 | 434.5 | 455.1 | 5,500 | 434.0 | 454.5 |
5,100 | 427.4 | 415.0 | 5,500 | 434.9 | 455.4 | 5,600 | 430.4 | 458.9 | 5,600 | 426.9 | 455.2 |
5,200 | 415.2 | 411.0 | 5,600 | 426.9 | 455.2 | 5,700 | 425.7 | 462.0 | 5,700 | 420.9 | 456.8 |
5,300 | 401.5 | 405.2 | 5,700 | 420.9 | 456.9 | 5,800 | 419.8 | 463.6 | 5,800 | 414.1 | 457.3 |
5,400 | 389.5 | 400.5 | 5,800 | 415.2 | 458.5 | 5,900 | 413.5 | 464.5 | 5,900 | 406.9 | 457.1 |
5,500 | 378.3 | 396.2 | 5,900 | 407.6 | 459.2 | 6,000 | 406.2 | 464.1 | 6,000 | 398.0 | 455.7 |
6,100 | 396.5 | 460.6 |
DYNO RUNS WITH CAM NO. 2 | ||||||||
Holley Single-Plane | GM Ram Jet | Holley Stealth Ram | ||||||
RPM | TQ | HP | RPM | TQ | HP | RPM | TQ | HP |
2,900 | 418.6 | 232.3 | 2,900 | 422.6 | 232.3 | 2,900 | 430.6 | 238.9 |
3,000 | 417.9 | 238.7 | 3,000 | 421.5 | 240.7 | 3,000 | 430.6 | 246.0 |
3,100 | 420.2 | 248.0 | 3,100 | 422.0 | 249.1 | 3,100 | 430.1 | 253.9 |
3,200 | 419.1 | 255.4 | 3,200 | 421.8 | 257.0 | 3,200 | 429.6 | 261.7 |
3,300 | 417.6 | 262.4 | 3,300 | 419.4 | 263.5 | 3,300 | 427.3 | 268.5 |
3,400 | 415.6 | 269.0 | 3,400 | 417.4 | 270.2 | 3,400 | 424.4 | 274.7 |
3,500 | 414.6 | 276.3 | 3,500 | 415.1 | 276.6 | 3,500 | 419.7 | 279.7 |
3,600 | 413.4 | 283.3 | 3,600 | 412.9 | 283.0 | 3,600 | 415.8 | 285.0 |
3,700 | 414.0 | 291.7 | 3,700 | 409.7 | 288.6 | 3,700 | 415.0 | 292.4 |
3,800 | 415.2 | 300.4 | 3,800 | 414.1 | 299.6 | 3,800 | 420.6 | 304.3 |
3,900 | 419.4 | 311.5 | 3,900 | 420.1 | 311.9 | 3,900 | 429.1 | 318.6 |
4,000 | 427.0 | 325.2 | 4,000 | 428.8 | 326.6 | 4,000 | 433.2 | 329.9 |
4,100 | 435.6 | 340.1 | 4,100 | 433.9 | 338.7 | 4,100 | 440.5 | 343.9 |
4,200 | 441.7 | 353.2 | 4,200 | 435.7 | 348.4 | 4,200 | 445.3 | 356.1 |
4,300 | 441.0 | 361.1 | 4,300 | 432.9 | 354.4 | 4,300 | 445.8 | 365.0 |
4,400 | 439.3 | 368.1 | 4,400 | 432.5 | 362.4 | 4,400 | 447.0 | 374.5 |
4,500 | 439.4 | 376.5 | 4,500 | 433.0 | 371.0 | 4,500 | 449.7 | 385.3 |
4,600 | 441.6 | 386.8 | 4,600 | 433.5 | 379.7 | 4,600 | 452.4 | 396.3 |
4,700 | 443.2 | 396.6 | 4,700 | 437.5 | 391.5 | 4,700 | 455.3 | 407.5 |
4,800 | 445.5 | 407.2 | 4,800 | 440.1 | 402.3 | 4,800 | 458.2 | 418.8 |
4,900 | 448.1 | 418.1 | 4,900 | 444.5 | 414.7 | 4,900 | 460.1 | 429.2 |
5,000 | 451.8 | 430.1 | 5,000 | 448.3 | 426.8 | 5,000 | 459.9 | 437.8 |
5,100 | 452.7 | 439.6 | 5,100 | 450.8 | 437.7 | 5,100 | 459.4 | 446.1 |
5,200 | 452.2 | 447.8 | 5,200 | 453.1 | 448.6 | 5,200 | 458.4 | 453.9 |
5,300 | 453.0 | 457.2 | 5,300 | 452.0 | 456.1 | 5,300 | 458.2 | 462.4 |
5,400 | 450.4 | 463.1 | 5,400 | 448.2 | 460.9 | 5,400 | 454.8 | 467.7 |
5,500 | 447.5 | 468.6 | 5,500 | 447.7 | 468.8 | 5,500 | 452.7 | 474.1 |
5,600 | 442.9 | 472.3 | 5,600 | 444.3 | 473.7 | 5,600 | 448.8 | 478.5 |
5,700 | 439.0 | 476.5 | 5,700 | 440.5 | 478.1 | 5,700 | 446.0 | 484.0 |
5,800 | 433.6 | 478.8 | 5,800 | 435.7 | 481.2 | 5,800 | 439.0 | 484.9 |
5,900 | 426.2 | 478.8 | 5,900 | 428.7 | 481.5 | 5,900 | 431.5 | 484.7 |
6,000 | 419.4 | 479.1 | 6,000 | 421.7 | 482.7 | 6,000 | 422.9 | 483.2 |
6,100 | 409.3 | 475.8 | 6,100 | 412.4 | 478.7 | 6,100 | 414.6 | 477.8 |
This Information Is Provided to Give You Some idea Of The Power
To Be Had From These Size Engines.
Dyno Tested Street PackagesFeaturing AFR Street Heads, AFR Hydraulic Cams, and AFR Manifolds |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Several years ago, Muscle Mustangs and Fast Fords began extensive testing on the available heads
for the 5.0 Mustangs. The articles began with the August 2003 issue and continued for quite a few
issues. The following bench flow data was taken from these articles. The data was all given at 28"
of water. Included in these articles were how the heads performed on the dyno, valve sizes, spring
rates, compression ratios, combustion chamber sizes, and installation info. The information in the
articles was extensive and worth purchasing a back copy if you really want to look into the
differences in the heads. I've merely given a base sample of the testing figures as published.
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
|
|
|
|
Distributor
AFR Small Block Chevy Heads Trick Flow Small Block Chevy heads
AFR Heads Dyno Tests Chevy HPC Magazine AFR Test
Dart SBC Heads Dart Exotic Heads New Dart Platinum Heads
Brodix SBC Heads GM Fast Burn Heads
Vortec Heads Tech on Heads including Vortec
AFR Big Block Chevy Heads Dart Big Block Chevy Heads
Brodix BBC Chevy Heads Edelbrock BBC Heads
LS1 AFR Mongoose Street Heads LS6 CNC300 HEADS
Intake | CFM As-Cast | CFM Ported | Difference |
Performer RPM Air-Gap | 251 | 267 | +16 CFM |
Victor Jr. | 247 | 276 | +29 CFM |
Super Victor | 258 | 282 | +24 CFM |
Manifold Flow Chart | ||||||
Intake | RPM Air-Gap | Victor Jr. | Super Victor | |||
Cast | Ported | Cast | Ported | Cast | Ported | |
Runner | ||||||
1 | 214 | 288 | 241 | 295 | 300 | 345 |
2 | 224 | 308 | 243 | 302 | 293 | 351 |
3 | 221 | 312 | 241 | 286 | 276 | 341 |
4 | 208 | 282 | 243 | 301 | 271 | 357 |
5 | 218 | 304 | 250 | 305 | 277 | 352 |
6 | 213 | 288 | 230 | 287 | 277 | 341 |
7 | 210 | 286 | 246 | 300 | 290 | 355 |
8 | 220 | 306 | 235 | 299 | 295 | 346 |
Dyno Results
410 SBC SuperFlow 901 engine dyno Tested at Westech Performance Group
Horsepower | ||||||
RPM Air-Gap | Victor Jr. | Super Victor | ||||
RPM | Cast | Ported | Cast | Ported | Cast | Ported |
3,600 | 347 | 343 | 332 | 329 | 333 | 329 |
3,800 | 383 | 378 | 364 | 358 | 366 | 366 |
4,000 | 416 | 411 | 394 | 390 | 395 | 394 |
4,200 | 443 | 438 | 422 | 419 | 422 | 420 |
4,400 | 466 | 462 | 448 | 444 | 448 | 448 |
4,600 | 487 | 483 | 471 | 468 | 470 | 471 |
4,800 | 507 | 503 | 493 | 492 | 493 | 493 |
5,000 | 524 | 521 | 520 | 517 | 517 | 519 |
5,200 | 543 | 540 | 538 | 540 | 539 | 542 |
5,400 | 558 | 557 | 555 | 560 | 554 | 561 |
5,600 | 571 | 569 | 568 | 576 | 571 | 576 |
5,800 | 582 | 581 | 577 | 582 | 581 | 586 |
6,000 | 589 | 586 | 588 | 589 | 590 | 595 |
6,200 | 591 | 595 | 594 | 598 | 600 | 605 |
6,400 | 594 | 600 | 598 | 604 | 601 | 608 |
6,600 | 592 | 600 | 597 | 613 | 602 | 613 |
6,800 | 583 | 592 | 599 | 511 | 600 | 615 |
7,000 | 572 | 585 | 588 | 609 | 592 | 611 |
Stan Weiss
|