i have a 04 grand prix with cartuning turbo, 1.95 yella terra roller rockers, slp exhaust. ported mani, a2a ic, WP pulley, alt booster stg 1, 42.5 lb injectors, 2500 stall, lt1 maf, custom pcm, 180 drilled, gmpp trailing arms, ls6 springs, port throttle body, hv3, 320lhp dw fp miles on the boy...