So far it's only on the gate spring driving it around on the street the few times I've had it out (so 9psi). I had it up towards 12~13psi on the dyno, but the carb wouldn't fatten up enough so we had a TON of timing out of it at that point (only 16 degree's total).
Bottom end is stock cast crank, stock rods with ARP bolts, Probe off the shelf forged pistons, stainless top rings, and the block is 1/2 filled.
Going right along with the sleeper hood pins... Got the worlds largest K&N filter hidden pretty well too... 5" inlet to the fender.
.jpg){kind=link}