This was a test of carburetor verse EFI

Many magazine tested this question , but it seems because carbs always won they stopped doing it and most online articles are gone.

The bottom line seems to be that a carb can make a little more power and EFI can get a little better mpg over the long term.

The saving are going to take a while to pay for the EFI system, so most people buy EFI for other benefits, such as easy starting or simply because it is a more modern technology

        EFI       Carbs
RPM HP TQ HP TQ
3,000 266 466 271 474
3,300 313 498 306 487
3,600 356 519 361 527
3,900 405 546 408 550
4,200 459 574 463 579
4,500 518 605 528 616
4,800 557 609 571 625
5,100 596 614 612 630
5,400 627 610 648 631
5,700 657 605 678 625
6,000 684 598 701 614
6,300 694 578 709 591
6,600 704 560 720 573
6,900 713 543 724 551
7,000 711 533 720 540

MSD Atomic    Edelbrock E-Street    Holley Terminator    FAST EZ-EFI 2.0    Holley 950 HP carb
14.4 mpg         14.2 mpg                    14.2 mpg                   14.5 mpg               14.2 mpg