I've found a 96' L31 PCM in the yard yesterday for $38. I'm sending it out to Brendan at LT1Swap to have it flashed for a NV3500 transmission and the trucks profile. I'll speak to him on any other needs but I'm only wanting him to flash the basics. The truck is running a L31 engine, not a L30 5.0L anymore. They're will not be a catalytic converters on the truck, it'll run a v-banded test pipe.