yes...and varied per company, Holley, Rochester, Carter, Demon, Autolite, etc.Walter R. Malik wrote: ↑Thu Sep 15, 2022 10:35 am Some are actual air flow numbers with fuel, some are actual air flow numbers dry and some are simply PROJECTED air flow numbers.
BG stated in their old Demon carb manual, all theirs were done at 1.5"HG/20.4"h2o, wet flowed, all 4 barrels locked open.
not one barrel flowed, then multiplied by 4, which would be an educated guess at best