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I got a dual ball bearing pt67 from precision (basically a GT-37) and I am running a .81 A/R hot side on mine. I have a boost creep problem that I hope to solve with some boost reference modification, but the turbo pulls hard after 3800 all the way up - especially when it creeps to 25 pounds
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Kris @ Tech9
86' 930/GT-40R Sold 
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
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