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My current set up is: stock 302 block with GT 40 upper and lower intake (stock heads and cam) 150K miles on the engine 1.7 RR 65mm TB MSD 6AL with Ignition Boost Retard MSD Coil Vortech B-Trim 6lbs boost full exhaust (mac short headers, pro chamber mid pipe, Flowmaster Amer Thund...

Has any one experienced a vibration of the exhaust towards the rear of the vehicle. It usually happens once the exhaust is nice and hot (operating temp). It will present itself 98% of the time when at idle and 2% of the time right at take off. I can put the car in neutral and the rpm's rise up...