what psi should the backpressure read?
what psi should the backpressure read?
5.3L, 4L60E, True Dual Exhaust, 40 Series Flowmasters, K&N Cold Air Intake, Nelson Performance PCM, 93 Octane, 0% TM, Ram Air Hood, 35" Pro Comp X-Terrain's, 18" Mazzi Sphinx Wheels. 3000 stall Yank, TCI clutches, Trans-go Shift Kit. Soon To Come:
4.56's, Cam, PLT's
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