Hi Glenn,
This is what you do. Permatex makes a high temp sealant # 59235.
Use this it works. Let it dry for at least a day or two before you run it with gas.
Bob

Last edited by VCODE; 08/15/17 10:25 PM.
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17

(Robert what is a 440 Six-Pack)