Originally Posted by SRTpowa
I just recently installed 240's modified manifolds. I have the origional needswings manifold tune, not the latest version. Prior to the manifolds I was running 11.0-12.0. I did some limited test runs last week and the AF was at 12.5 across the board. With each pass (3 total)I made the car felt stronger and on the very last run the AF dipped back into the 11's. It has been raining for a week here and finally quit. I am planning to take it out and do some runs today and put some miles on the car. I am hoping the ECU will adjust further and dip back down to 11ish AF. If not then I guess I will need to send the ECU back to INmotion before I put the Code 3 mid pulley on. I might be able to hit the track up next weekend if the new pulley ever comes and I can do some datalogging. 100 octane tune with meth injection could be a solution.
this was his post on March 14, 2009. So you do have a 178, cai, and mani's tune. I would just add the 178 when your ready. Just to be safe I would take it easy until you can be sure the afr's are safe up to the redline. That should be good enough to get you in the 11's in good DA.