[CarPsyco84]

It's a normal felpro, thought alot of guys ran those with better studs, guess I was wrong. I honestly think something is causing that cyl to be the one to detonate, I just replaced rod bearings cause the rod bearing on that cyl was trashed, luckily I caught it before it threw the rod, but I'm just wondering If anyone has had issues with the last cyl running lean from pressure drop on the fuel rail or anything else like that? Its a stock fuel rail, I have 1600cc inj. with twin 255's, only been using 65-75% duty cycle on the inj though.

The head and block appear to be flat within .002", as best as I can tell with a true straight edge, can't slip paper under anywhere. Of course the heads pretty well junk, maybe weld fill that hole and remachine it but I'm sure it would have even more issues then, and it's already having issues.