Even the last bastion hold-outs for carbs have adopted EFI... namely NASCAR. The year after EFI was adopted, the cars went faster than ever. Smaller restrictors were introduced to lower speeds back to previous levels.
Daytona 24-hr all-time lap-record was set in 1993 by Dan Gurney’s AAR Eagle MKIII-GTP car. It had smallest displacement of entire field at 2.1L, yet made +800bhp. Simply not possible to tune such boosted monsters with carbs to get easy sub-freezing cold-starts, along with friendly partial-throttle mid-range in addition to that kind of peak-power. Daytona 24-hr lap-record finally broken this year, 26-yrs later by Mazda.
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