It rattled pretty good before it popped. Didn't even have time to react. Guessing it was 35-40 psi, and lean since I didn't have fueling set for more than 28psi. Pretty sure rod bearings are probably hammered and ready to spin. The plan was to part out this fall anyway, so I'm just going to do it now. I've lost interest in the two seater over the last few years having wife and two kids, I'd like to move into a turbo Buick or grand national.