Well I found a ss mods crank and this is were the engine started, it has new piston and sleeve and a bulked up connecting rod. Every thing from the bearings to the block is new, but I'm going to put a os carb on it after its done being broken in but do you think the crank will affect the break in??? The carb is a stock 3.3 traxxas carb that is set for break in. Would I make it a little more rich?? What do you guys think thanks!