Originally Posted by lincoln361
Did you have the mess with the fuel injectors or anything. If you have the od cog drive, did you change out any other pulleys?
stock 3.8 pulley, injectors that came with the maggie and a zl1 fuel pump, no module. Duty cycle was @ 95% so in putting in 850's before i put on ported throttle body and 3.6 pulley. Should be 650 ish. Best bang for the bck is the OD cog and zl1 pump-whole nother animal!