I have an 88 gt, mass air converted. Its got equeal length shorties, off road h-pipe and flowmaster 2 chambers, I also have a trick flow track heat upper and lower, 65 mm throttle body, 14* timing, adj fp reg, set at 40 pounds. It seems like when i get on it after lets say a stoo lite, once i get up to speed i get an odd smell from the exhaust. I know the valve seals are going in the heads, (if i ride a gear down i see the burnt oil). But this smell has been around for a while. It doesnt smell like burnt oil, coolant or anything like that. I know im kinda throwing this one out there but any ideas would be great. It does get anoyying when i am driving with the windows open. Thanks again, Nick