At over 7000 lbs this full size Suburban was never going to be a race car. In 1999 the 5.3 was only rated at 275hp flywheel so with this much weight it had a hard a time climbing hills without being at 4000+ rpm in 2nd gear. So the owner put a 212/218 comp cam and turbo kit on it and brought it to me for a tune. At 8psi the Suburban now pulls away strong from the lights and will climb the west side hill in 4th gear without effort, even on 35″ tires.
