Don't read if you're close minded

GTX JOHN said

A 4150 Holley 1050 DID NOT flow nearly as well as a 1050 Dominator
on my friend's Wet flow Carb Bench.

I have no explaination on how Holley could rate them the same except if
the have different standard that they go by?

Click to expand...

Best I have been able to come up with is the ratings such as 650, 700, 750 etc are mostly approximations for purposes marketing and sales.
As I recall looking at the 4776+ series and comparing with their vacuum secondary counterparts and found the same bore, venturi, booster were rated 50 cfm different.