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Message: <blockquote data-quote="ant0045" data-source="post: 291080" data-attributes="member: 10224"><p>i am currently puttin together a 306....i have speed pro forged pistons, forged i-beam rods, crank will be cut, gt-40 heads (not p) as of now unported and built to match the cam, the cam is a crane power max advetised duration is 286/294 and lift is .542/.563. as of now i only have stock intake mani but lets pretend i have a decent intake setup. what is my potential whp and wtq. second question is if i decide to not build a motor and just put the heads and cam setup on my brand new stock motor, is the lift on the cam to much that the valves will hit the piston?</p></blockquote><p></p>