I ran my t28 on my stock USDM 9.5:1 for well over a year at 15-16psi. I tuned it like it was going out of style, but it finally ended up damaging something and now my compression is progressively dropping. At that boost level on 101 octane unleaded, I laid down 287/274. nsusammyeb, what city are you in? I just moved away from Louisville...
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