Thats what I was thinkin with the rev limiter in park, but other people always seem to have an opinion and dont listen. So ya, the headers and cat are on the way now waiting for that to come in.
But a friend of mine pulled up behind me a half hour ago and told me he seen blue smoke coming out of the exhaust and still seems like its running rich. Not really sure on that. Still thinking it has something to do with the fuel system. Wondering about that purge solenoid and vent.