The old rule - Demon wet flows their carburetors so they measure lower than a Holley for the same size barburetor, add 100 cfm.
but the later carburetors that I've looked at don't seem to be much different than Holley.
The only way to be sure you're comparing apples to apples is to look at butterfly size & main jet size, but you also have to compare booster venturi types, because a straight leg booster requires larger jets than a down leg booster, and a down leg booster requires larger jets than a annular booster.
make sense?
-G
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If you use a 351C 4V powered vehicle for a grocery getter ... the eggs aren't going to make it home!
