Thanks again, I told Mike to get a refund from SCE for the junk on my car now and order the fel-pro MLS gaskets. Eastside performance runs them on there nitrous cars(which are some of the fastest in the country) with very little problems over a 350 shot. If all else fails I try cometics, but I heard the lift @ 300? How much has your seen with no problems?(feel free to PM me)