400 big block

Thanks, that is very interesting to me. So the combination you use will also determine which camshaft you choose right? I have been wanting to use one of those Xstreme comp cam kits, say a 292/506 hyd. Would that be too much cam for a stock block 400 with say ported 452 heads with single plane (Torker type) high rise and four barrel carb(780 d/f D/P) using the 440 crank set up?