I have a 496 short block. that I want to use as a spare for my car . or somthing in the future. I plan on using AFR 315 cnc for my heads and a dom 1050 that i have. the short block is a gm mk 4 block and eagle 4340 crank and h b rods . the pistons are srp 12.8 comp looking for the most i can get out of this size engine . looking for a solid roller cam recommendation and any other advise on this build any 496 running the same parts . tell me what you got .