chris is right, start at 14 then go from there. run high octane gas... and i noticed you have GT-40P heads. are you sure you still have 9:1 compression? i thought all GT-40 P heads were 58cc combustion chambers???? and if you have the stock bottom end you will have about 9.5:1 or so compression.
take care,
adam
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90 GT black/ grey leather
ported GT-40 heads w/ 1.7RR, Cobra intake w/ ported lower, 24# injectors, 190LPH pump, 75mm Pro-M MAF, 65mm TB, K&N panel, BBK long tubes, Off road H-pipe, 2 ch. Flowmaster, Black magic fan, Kirban FPR, 180 deg. T-stat, 3.73's, Steeda Tri-Ax, 130 amp alt. Accell 8.8 race wires/cap/rotor, motorcraft plugs, Factory Five suspension, etc etc etc....
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