Thanks for the replies. I hate to start another thread so I'll ask this here also..
I've read that some people use 30 min or longer Epoxy thinned with Denatured alcohol to fuel proof the firewall and I've also read some use Mini-wax Polyurethane.. Is one better than the other? If the polyurethane does work equally well, I'd rather use it just because I have a whole can of it.