KB107 (0.30) Pistons undersized?

for your inform

replicaracer43 said

I'd find a machine shop that knew what they were doing

Click to expand...

I ran some kieth black hypers at .004 clearance once. they rattled a little till it got warmed up then quit and was quiet. you could always set it up to run a couple of degrees warmer too. that engine ran low 11.00`s too. 11 0hs to be exact