The most acurate way to find out if you have a 10:1 motor
is to take off the head, if your pistons are flat top then you have a 10:1 motor.If your pistons have elevated rim on the top then you
have 9:5:1
hay correct me if I'm wronge!!!! 
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RED 91 SE-R T25 TURBO SETUP,GREDDY TYPE R BOV,CROSS DRILLED ROTORS,STILLEN STB,300ZX FUEL PUMP,H&R SPRINGS,JASMA EXHAUST,ETC
JAPANESE BODY KIT.
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