Make sure that the hole for the needles to go through is down as far as you can get it. If it sticks up at all or is not perfectly centered it will rub the base of the needle and cause it to stick.
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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
Team B.O.B.® - Ballaz on a Budget