Stop thinking. That RPM range is merely a generic "guess" for advertisement purposes. That camshaft will pull well beyond 4500 RPM. Also, you need a better timing chain set if you expect to be able to zero in on the camshaft timing the way you need to. I would recommend one of the Cloyes billet sets with the nine way crank gear. Then you'll have something. Just DO what we're recommending. Turn the brain OFF and just DO IT. You'll be thankful, I promise. I wouldn't recommend something if I didn't think it would work. The cam card for that cam does not say to install it "STRAIGHT UP". If that's what you did, you are at least 4* retarded. Because of your low cylinder pressure, I recommend installing it down around a 106 ICL. That's 6* total advanced, instead of the recommended 4*. Once you get that done, then you can proceed to the ignition curve.
