im new to the big block world and not real sure whats going on. first off ive got a 454 with what ive figured to be the peanut port heads. numbers 246236. with a cast crank that needs turnt and 2 piston rods/pistons. other than that its all in good shape.

what im looking for: going in a mud truck most likely open headders and im lookin to put the comp camps extreme energy 4x4 hydraulic flat tapped cam kit in it.
pushing as much power as i can without race gas (93 is fine)

my worrys:runin flat tops or slight dome's.. cast crank even worth turning down or is it gona leave me right back in teh garage?
stock rods worth keeping?
and to the main one.. my current heads worth not throwing in scrap? cam range is 1000-5000 or 1400-5400
was told their good for torque but anything over 4000 rpm they are worthless.. so.. whats the word guys?

another little question leading off to my newbness in big block world..
2 bolt main/4 bolt main... any worry or whats up with that.. mines 2 bolt btw.