The lump bolts are at 95 and studs are at 100. The 15 lbs was totally by accident. I made a few passes at 7-8 lbs and was going to go to 10. Well one more turn on the controller and the hose blew at 15 as I was coming off the throttle. Lucky I found a weak link before something major happened. It was the last race last year so we'll see in a couple of months. That extra boost sure felt good but I want the thing to last. Also when I blew the other head gaskets I was running pump gas and I don't don't know where the boost gauge was because I was watching the track. I have meth injection but I didn't try it last year. Now it will be race gas and water/methanol. Should be fun.