Don't put that piece of mopar elegance together without at least putting in a set of cheap flat tops in. Did you have it down and change the bearings and rings? If so, disassemble AGAIN and even if you can find used flat tops on e-bay use them. Decent compression is the name of the game. Do you know the bore? DON'T FORGET JOHN FORCE RAN USED PARTS FOR YEARS!!!!!!!!!Walt:cheers: p.s. this is my buddies backhalf 10.02 last weekend 340 ci.