showvette

OK... Here's the whole story about these Procomp heads. In a nut shell, they suck! I took them to have them flow benched, and to say they didn't come close to advertised numbers is an understatement. I took them to the same shop that have flowed other heads for me previously. They do alot of Pro Mod head work. How far off were they? Procomp claims 291/203 @ .600". These heads actually flowed 270/168 @ .600". The exhaust only flowed 174 @ .750"!. Max intake @ .700" was only 274! I was also told the valve job was terrible. The exhaust flow on these is actually WORSE than stock 241s. A 241 flows 198 @ .600" on the exhaust. These are going back and I'm sending my 241s to Lloyd Elliot. My advice is to stay away from this Procomp junk.

Frank

adamantium

iTrader: (3)

Did you flow stock 241s on that same flow bench? Comparing flow bench numbers from different flow bench's is some what irrelevant. Unless you have some sort of constant like stock 241 heads to compare.