jabman wrote on 07/20/10 at 11:59:11:do you think gas would find a exhaust header leak as well?
I doubt that, but I did have an idea for finding exhaust leaks a while back. I've never tried it, though.
The idea was to introduce some Sea Foam into the combustion chamber. Let it sit for about 10 minutes or so. Then, start 'er up.
There will be lots of smoke. You should be able to thus find any exhaust leaks visually.
If you try it, let us know how it works!