If you are buying new pistons and this is a street car I would get closer to 9:1. 10 psi on a 9.5 compression motor is going to need a lot of timing removed out of the tune
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2009 Porsche Carrera S
2008 ///AMG C63.. Eurocharge Tune. RIP
2019 AMG GLC43..wife's
03 F250 SD.. Edge Evo, AFE Stage 1 CAI
08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's
01 Cobra vert... wife's
I need a new toy
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