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Hmm, I’m not an engine builder, but most of the time I see people running lower compression than that so they can run higher boost and more timing. Maybe on E85 you can get away with it but I’m not sure on that. I’d talk to a couple of professional engine shops experienced with the LT4 before going down that higher compression road.
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2021 Camaro ZL1 A10
2022 GR Supra 3.0
Past:
2018 Mustang GT Premium w/ PP1, MR, and A10
2007 MazdaSpeed3
1995 Pontiac Trans Am
1987 Camaro Z28

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