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Vehicle Information: Model: 911; Year: 1984; Body Type: Coupe; Engine (type, size, modifications): 3.2, Autothority MAF, Cat-Bypass, Dansk Muffler; Total Mileage: 41,000;

Hi Chris,I just replaced the factory original ignition wires on my 1984-911 with nice red 8.5mm Magnecors. Both the distributor cap and rotor have been replaced recently. I now experience misfires at 3800RPM and 4500RPM. The car was running fine with the old wires. I've made no other changes or alterations (just replaced the wires). The car idles fine, and runs fine to 3800RPM. After that, it bucks and hesitates violently.Any ideas?

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