06-13-2020, 06:40 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,017
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Not Ranked
If an exhaust valve is not opening properly, then the primary pipe that is associated with that valve will not be in the same temperature range as the other exhaust valves. Start the car up when it's cold, and hopefully the tick is still there, and use an IR gun to monitor the temperatures of the 8 primary pipes and see if one is really out of whack from the others.
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