I have a bgf z280 and a nt carb with the off set carb intake.I can't to get it seal right and bolt come lose every time I start it.I have made my own gasket from gasket sheets from auto stores.I have used gaskets from bgf.I also tried to put seal all on them too.Seal all works great but not there I think it's gas and oil resistance but the heat gets to it and then leaks.What should I try now?Oh wait one more thing I also tried loctite on the nuts blue strength.So give me some other Idea's.