I have a dumb question
If I am going to send my harness to Speartech, does this stuff matter or should I try to sell this harness and buy an A4 complete harness and ECM?
Also, the ECM he gave me is already tuned for a Procharged car (it has a sticker with some tuning details on it)
I can still use this ECM and just have it flashed, correct?
Thanks
Oh and this is going in a '56 belair build and I am still searching and learning what all I need done when I send the harness to Speartech.
I dont think the trans that the computer originally used matters. Should be able to use either or, just change parameters in the computer.

