what do you guys use? I've been using cometics for a while now and since i have to tear down the engine and miss carlisle i'm taking my time and going to do a couple other things while its down. But back to the question at hand, looking for something that will not pop on me with 12#s of boost. not so sure i want to stick with the cometics. they seal on the combustion chamber usually but always seem to seep a bit.