Any epoxy used with Methanol is going to need to be sealed with a top coat of clear acrylic.

The best epoxy to use in intake ports is Pettit A-788 Splash Zone.
Will

 

Is there a specific clear coat to use? I would think clear would not stick to aluminum and would flake off

 

You brush it over the epoxy. It'll stick to the aluminum as well. Imron clear coat is the best but I've used hobby Co stuff in a pinch.... methanol will eventually eat it up but it's just a maintenance item with epoxy in a methanol engine.....

I've also heard of people using some kind of POR15 gas tank sealer brushed over Splash Zone to protect it from methanol. Never used it myself.

There is an epoxy called Belzonal that some say is impervious to methanol but, I've never used it.
Will

 

hey fred,sent you a pm with my cell# and I will expain the whole deal to you.buck did my motor and we did not clear over it and screwed a few things up.mike.

 

Splash Zone is great!!!!

 

Splash Zone. Devcon clear epoxy. Splash zone is pretty tough. If you use some water to smooth and finish the epoxy, it will lay flat and smooth.

 

Splash zone and then paint it with POR-15

 

Splash zone been in my intake for years.
Prep is the key.