Thank you for the response. I won’t ask what all you have invested in what you did…, but I’ve looked at it all on the net so I have an idea. I spent a few hours today looking at just getting a turnkey old school 383 with carb, a Monster or TBI 4x4 trans that will handle up to 800hp, watched videos on repositioning the trans mount, and regearing the front diff and rearend. I’ve replaced all these sensors, and keep chasing trouble coded to no end!!!! I read that with these trucks and Tahoe’s from the 90s is just Never ending! And I’ll never get the hp and feel I’m looking for. I have had two diesel pickups that I deleted, straight piped and put downloads in.., they were pushing 6-7 hundred hp and it spoiled me with that power and feel!!! I want that in this Tahoe! I think the only way is to go 383 or 454. I had NO idea before I got into this Tahoe how pussified they really were! I’ve had 80s and 70s chevy pickups back in the day that we’re bored 30 and 40 thousandths and they would burn the tires off. Hell.., I had a 63 short wide that was just Nasty with just s 40 grand bore in it, power glide and mid grade cam!!! That truck would make that heart pound when you wanted it to!!! This vortec is trash IMO!!! Yeah.., I think there will be a 383 stroker with a demon 4 barrel in the future for this Tahoe. And get rid of all these sensors on this motor/trans combo. The EPA is going to continue love me!!!!