The truck is just a stock 5.3 with 1" 7/8s headers and tuned on 93 pump gas also has a built 4l80e, made an equal center section and reused speed engineering tail pipes and used spintech 6000 mufflers also.
Thanks you! I pulled out this 5.3 and put a 6.0 i put a small clip of that up with the same exact exhaust setup just bigger and higher compression motor.
