360 heads on 318

Not an expert on predicting power, but there was just a post on a article link for a 415 hp 318 not too far off what you have. Do a search for 415 or 415hp and it should come up. EDIT: WELL, I JUST TRIED TO FIND IF FOR YOU AND I COULD NOT GET IT TO COME UP. I MUST BE GOING LOOPY AS I'M SURE I READ IT ON THERE THIS AM.

If I remember right they put the block over .040. Used the same type piston, decked the block to make the piston flush with the block. Put larger valves in the head and just did a clean up port. Made it sound like hardly any work to porting at all. Skimmed the head I believe too. Used an RPM air gap, thermoquad carb, TTI's, Comp 268 (am I remembering right there?) cam and that is about all I remember. I do remember them using stock rocker gear. Hope that helps some at least.

Cheers