I know that this has probably been done to death , but I'm going to ask anyway. I have a set of ECG-D heads and am wondering what mods should be done ??
I'm building a fairly mild street 272 and want to know what can be done porting & valve wise to get the best out of them. Do I need to go bigger valves ?
Block is .040 , cam - intake 0.4201 lift, 282' - exhaust 0.4186 lift ,281' and will probably be running my offy triple carb manifold with 3 "94s"
Also could somebody please tell me what the go is with posted & unposted heads ??
Thanks David