If the engine is warm, everything will seal better due to expansion. Warm the car up, and make sure you are at WOT during the test. What alarms me is the large difference in numbers between the cylinders....but retest and give us the results.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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