[Mikes95RT]

In the time it took you to do that you could have already replaced the entire NA harness with the TT harness. Then all you would have needed to do is plug in the resistor box. If you were not running a stand alone running the TT ECU stops you from needing a huge correction from a piggy back to get the fuel right. I can run 450cc with about -10% correction. I don't think you can get enough correction out of a NA ECU to run anything larger then 360's. I know this doesn't apply to you because you are going with a stand alone but I don't see why the average Joe would want to run the NA ECU when the TT ECU has been proven to give you 50 H.P. increase by just plugging it in. J.B. saw a 50h.p. increase from the NA ECU to the TT ECU and was able to retune w/o large corrections. Timming advance just blows and when you are running your SAFC at -50% then what would you expect.