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Hey guys I'm new to the forum here. I have an 02 denali awd quadrasteer with a 6.0. I just recently had the motor and trans built. I'm running a 283/227 cam with pace setter long tube headers and a built 4l65e. I also have a volant CAI. I'm having my exhaust done this week and was wondering what the best setup would be for the best performance, true duals, x pipe, y pipe, size, diameter, etc. After i have the exhaust done i will be taking it to blackbear when they come to atlanta in april. Thanks for all advice.

Hey there. I'm thinking of either milling my 317 or going with some aftermarket. Also I have a Vortech v1 supercharger kicking around. Thinking of installing it. I'm running a lq4 317 heads xr275hr. Tri u ion kit. Springs. Push rods. 46lbs fast injector. Inferior intake. K&n intake pipe. Headman headers shorts. Aftermarket fuel pump. e-fan. Double chain timing chain. Dyno tuned. Only got 340rwhp with 24" with 305/30. Have a throttle problem should be more, will try again once all resolved. 4:56 rear gears with Yukon. Upgraded brakes.