Epoxy?

Not trying to Hy-Jack, but the mention of "Epoxy" on a iron intake would be OK *I think*, but not sure at all. What epoxy would/could be used on a iron intake for this? Would it also be good for, let's say, an exhaust port?
What would be a good epoxy for this?
Because I'm thinking of high heat issues. True, the intake doesn't get as hot as an exhaust port, but, the overkill thought comes into play.

What about aluminum? Since an aluminum intake is more likely to be the focus of most people doing this.

Ink, I think paying the tig piper is the best route IMO. Of course, we all love to say "I did it!"
Guy I talked to wanted close to $600, considering the bungs are under $60....
Found something on the Holley site, don't think this link will work...https://www.google.com/url?sa=t&sou...ggvMAM&usg=AFQjCNFd1HlnqlEWFI45irvK6aMErAgb3Q

I have a tig machine. Started figuring out things...just got distracted...really should talk to the guy in town that holds classes...