Quote Originally Posted by y5e06 View Post
IPerhaps you can use an LS1 type tune but would have to adjust for firing order and make sure correct for stock LT1 MAF etc.
I will say that when I LS swapped my car, the LT1 MAF I was using for my 96+ OBD ECU carried right over to the 99-02 LS1 harness/ECU no problems.

Same MAF I believe was used 94-97 right?

That's one less thing possibly, although what the tune is looking for in regards to MAF reading vs RPM/Throttle is a different story...