I have been running a big block mopar for a few years now and it seems no matter what i use for sealant on the bolts i have at least one that leaks when i put it together. I have mopar stage 6 heads and i just got it together and there is 3 bolts leaking even though i coated them good with permatex thread sealant.What is the best thing to use to seal up these bolts. Now I have hooker super comp headers and they are not the easiest to be taking on and off a bunch of times so I would like to get it fixed on the first try.