Switching turbos posted by BOOZTD 3 on February 25, 2004 at 05:40 PM
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I know the cali boys have trouble finding over 91 octane unless they get race gas. If you can run 93 octane or sunoco 94 octane I would say 15psi is fine. I wouldnt lower it. You could also expect power levels to be between 330-350, that is just my guess.