3GSK or 4GSk?
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I got the 4gsk, .imo you mise well. depending on what you are gonna be doing with it. my truck never sees past 3500 and im not worried about the heavier valve springs. i love the throttle respnse. go with the 4 and then when you decide you want to take er there you already got it.. just my .02
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ITS AWESOME. totally makes the truck fun to drive. I got a 5-speed and its a blast. If i had a bigger charger it would be even more fun. it fuels very hard to 3500 then i get out of it cause egts are 1200-1400 degress.. ( ya need charger ) but its still a blast! good luck you will love it
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