Hi all, so all the bits and pieces to my build are in front of me, took my block to machine shop and got 3.4655" on all four, 12-6-9-3 positions top and bottom. Anyway, I ordered some .020" wiseco pistons from Chris, they all measured out at 3.4610". Which leaves me with .0045" of clearance. This WILL be a high boost engine around 30 psi. Has anyone else ran their clearances a little loose for room to grow? I called wiseco and they stated it should be OK but wanted to see what others are running for high boost applications