Keith Black pistons VS Speed Pro for 318
here is an answer from another site about my setup. He addressed the zero decking of the block and gave the #'s. hope this helps.
If you want a Zero deck engine, and you DO, have it decked to 9.588". That will be just right.
I to agree with others that your cam choice is to big, But i see BJR is talking with you, The Guru of small blocks, so youll be ok