The a/c in a f-body lt1 will not work in the truck conversion. See Street and Performance for brackets or get the vette accessories. I am not too sure about the 94 computer. I got a new chip from S & P that had the VATS removed. I plugged it in and it started right up after I merged the LT1 and V6 harnesses together. The motor mounts are exactly the same as a standard old world chevy V8. You will have to have the LT1 harness and PCM since the ignition uses optispark. The 700r4 should work fine with it. You may have to change out the connector but it will bolt right up. My harness had a 5 pin connector that looked like the bolt pattern on a wheel, most others have a different shape. I guess it was the vette harness. It didn't hurt my feelings though since I had a five speed from my V6 that bolted up to it.