5.3 with Sloppy Stage Two on runstand, startup with no tuning. SS2

Runstand made of pallet racking, and leftover parts. Made it five years ago for the 5.3 swap in my CJ7, added a radiator and exhaust so I can warm up the motor and go closed loop. Running with a harness direct from China.
LS6 manifold pretty much triples the cost of the engine. Running with only VATS and rear O2s removed in PCM.

[@2001TahoeBorlaRacelineXR1]

Factory tune right