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afm...why gm
alright had my ss almost 3 months got the afm tuned out and dod blah blah blah. Still getting same gas mileage so why other than possible higher gas tax on the sticker did they do it.
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factory motor factory trans, Gpi ss4 cam stock heads ported and milled, full exhaust, circle d 5c 4000 triple disk, 3:91 rear end with posi mod, cai, bmr derlin rear diff bushins, bmr derlin cradle bushins, bmr trailing arms, toe rods with bushings, and bmr anti extreme sway bar. Weld rt-s 17x5 fronts and 17X10 rears on mickey thompson et street r's
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