Yeah i was afrade of that, I didnt put a cam, in i was on a budget, and it was more work to do it, I spent more on the heads so I figured that those would make up for the cam. I'll find out when i get my guage in so i can get my regulator on.
I was reading some flow data for the GT40 heads, and from .500 lift to .600 lift, the increase in flow wasnt even significant, now thats just on the flow bench, probably with the valves open a bit further, dont know if that takes account for the duration. So is the cam really gonna help....
http://www.jason.fletcher.net/tech/f...a/castiron.htm
http://www.jason.fletcher.net/tech/f...a/aluminum.htm
take a look at these, some good input! When you decide to choose some heads, Eveyone thinks ohhh AFR!! those are the best out of the box heads, well i dont know about that buddy...

Edelbrock ???