Rings are blown, 6.0 time need help
#21
rated at 300fwhp, they have been known to dyno in the 290rwhp range and that is thru 4l80e trannys and tcases most of the time too. seems like i dyned 290 with a cut out and udp intake.
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Dezert1500
GM Parts Classifieds
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Jul 30, 2015 02:51 PM



