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I have GPI's VVT SS1 cam, CNC heads, and rod mod intake. Dyno'd at 455/418 on the stock converter and drives great, just a little choppy at idle which I expected. I'm sold on their quality and service.
For me one of the benefits of GPI within driving distance is getting Ryan to tune your car, he pays attention to the details and doesn't rush through it. I've seen other post about Ryan doing remote tunes but I only did this for a startup tune only.
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Kooks stepped headers & Solo XL Cat-back
ADM CAI w/race scoop & Rotofab w/w relo
GPI VVT SS1 cam and CNC ported heads milled .30
BTR .660 springs, Straub solid bushing trunions
GPI rod-mod intake with I-M heat sheild
Circle D 258mm Pro single disc 3700 rpm stall converter
169F thermostat & manual fan switch
Tuned by Ryno at GPI - 455 RWHP / 416 lb-ft
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