I know your post is old, but I just joined and was looking around and no replies.
Flow is usually measured at 28" Hg pressure drop and just as a function of valve lift, nothing to do with what cam is in it.
Info I have is meager (looking for more myself) but I have, from Leo Santucci's excellent book on pg 86
at .600 lift:
Intake 169cfm
Exnaust 122cfm
Usually, lacking any other info, I assume flow goes as the square root of the lift. And, I usually look for and quote .500 lift as a standard. So with my approximation, the info above changes to approx:
Intake 154cfm
Exhaust 111cfm
A past article of Hot Rod listed, at .500:
Intake 159cfm
Exhaust 117cfm
Pretty close!
Those flows are not great, but about the same as a stock 351 Windsor Ford and capable of over 1hp per inch with same.
Late post but hope this helps, shoot back if you get it!
