Yeah, it's kinda hit or miss. I have a good friend that had a CRVTEC with a stock B20 block, GSR head, and boosted to 12lbs...it held up. I've seen some spin bearings a month after being built...better safe than sorry.
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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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