What ECU are you using? I have 2 ecu's that i've tried on my obd0...a pg7, and a pm6. The pg7 has a weird bog to it at partial throttle...hesitates bad when you punch it, but clears out when you nail it again. The pm6 runs it just fine, just not as fast because of the basemap being different. I really need to chip that pm6 soon lol.