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  1. General K-series related talk
    Hey guys, I’m looking for some advice on a K20 street build. I have a k20a right now but I’m willing to go k20a2 if that’s better. I’m planning to supercharge it with the jrsc but I want to keep it running on 93 octane gas. What psi should I target? Should I bore out to 90mm to get more air...
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