Hello all. Im new to the sight, but shouldve joined long ago. I have a question about an LT1 swap into a 91 chevy 1500 (short bed, single cab, 2wd). Ive got an LT1 out of 96 Z-28, with the complete wiring harness and computer, but no tranny. I know that they are crap, but i have a built 700r that im hoping to put behind it. My question is weather or not i need to get the PCM re-flashed to account for me not running an electronic transmission. I have also been debating a painless wiring kit to simplify the swap as well as bypass the VATS. Any information that can be thrown my way would be appreciated.