i don't think i have a burnt out valve anymore, because i haven't smelled gas in 3 days... i think all the problems i am getting is from the following, use of un even diameter pipes, and possibly the exhaust leak (which i fixed). She idles fine now, still getting that "knocking" noise tho. wish i could figure out what that is. i only was getting the gas smell when i had the leak... which was probably causing a drop in compression...
