I'll post a picture later to show exactly what I'm talking about, but the '66 tripower intake I have has a crack at the water temperature sending unit threads. It extends from the threads about 1/4-3/8". It's been years since this intake was in service and it didn't leak then, but as I move forward with this build, I want to take care of these kinds of things before they become a problem. Should I try to remedy this now or not worry about it? What's the chance a crack like this grows? Is there even a way to fix it?