ORIGINAL: rcfury
I dont know if you would call it an hole or a chip on the exhaust outlet. Maybe this picture could clear it up. So far ive tried RTV w/ paper gasket, and just RTV. The nitro just breaks the RTV down when running. Maybe JB weld could fix it for a longer period of time.
Now how did that little chippy get there? Looks like maybe "installer error" when putting those long ***** nuts and bolts on?

JB should take care of it.