Quote:
Originally Posted by whichonetodrive
From what I have read and been told a well tuned carb will out run any efi system
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Well, yes and no. Tuned on a day to day basis at each track, that might be true, depending on who's doing the tuning.
Once the carb is tuned, that's what it is. Winter, summer, wet, dry, high altitude, etc; that's pretty much what it is. Vacuum secondaries will compensate for altitude a little bit. But that's pretty much what you get.
A good EFI system will "retune" itself on a moment by moment basis. Once tuned, it will maintain that tune in pretty much every condition, every day, for years on end.
A carb only has a couple of tuning circuits - idle, cruise and WOT.It works well, is simple, and inexpensive; but not always that accurate.
EFI is expensive and complex. It has multiple avenues for direct and indirect feed back. It has maps to modify for various temperatures, pressure, etc. It's very accurate in nearly all situations.
It's like comparing a shotgun to a sniper rifle.