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  1. J

    87 GN for Sale

    Entertaining offers for 1987 GN. Professionally re-built drive train by Cotton’s Performance less than 8k miles ago. Car has 81k miles on chasis. Entire undercarriage coated in POR-15, with polygraphite bushings, new springs, and bilstein shocks. Stainless transmission lines with front mount...
  2. J

    Buick for Sale

    Entertaining offers for 1987 GN. Professionally re-built drive train by Cotton’s Performance less than 8k miles ago. Car has 81k miles on chasis. Entire undercarriage coated in POR-15, with polygraphite bushings, new springs, and bilstein shocks. Stainless transmission lines with front mount...
  3. J

    Applied Technologies Waste Gate

    I am new to the forum so thankks in advance for the help. I have an 87 GN formally owned by SLOWHAWK. The motor was built by Jack Cotton in 2004 and has about 6K on it since. The wastegate is an external one by Applied Technologies and there is an adjustment screw in the middle of the waste...
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