uhhh wait..... posted by LJZTT on January 25, 2015 at 05:25 PM
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it was 380 at 15 pounds, and at 17 to 18 was at 420. Dual Maf, back then 555, and other bolt ons. I am thinking of JWT 550's mike smith manifolds, How is the fitment on the Ams 3 inch down pipes and test pipes? any issues on clearances ?