Cam Selection

Geri said

personally camwise I like to stay with around .480 lift -using the mopar purple shaft cam. been a long time but they sound great- run awesome. valve reliefs in the pistons would be required-with the composite -thicker head gaskets the valves just touched the pistons, -my bad. consider the thicker head gaskets. I put one (.509 lift) in my '69 Cuda 440 (factory) with headers, tunnel ram .holley 660 carbs and 4.30 gears it was an 11 second car at 118 mph. right up to the time I blew the begeesus out of it. yes- I ruined a perfectly good 440 factory cuda fastback, but in 1970 it was only $1600.00

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I don't want to hijack this thread but I have a quick question that somewhat coincides with what dstan is asking. I have nearly the same set up dstan has and I like the Comp Cam 21-227-4. I confirmed the selection with Comp Cam. That selection included the running of Edelbrock AL Rpm Heads. It was mentioned that going over .5 lift is a bit concerning. Is it for the RPM heads? I have never been able to assertain how much more lift the RPM Heads would allow me vs the stock heads. Also, I am told by the builder that the compression is 9.7 The comp cam spec says it is best on a 9.1 compression engine. Is this difference in compression that critical on the selection of the cam? If so, how much and in what Spec? Also, Comp Cam says the 21-227-4 gives extra lift for Upper RPM Power. What is I want mid-range power? Any suggestions? Again, I apologizes if you feel I hijacked dstan's thread.