Every tank so far has been 14.8 with the old tires. I can feel these tires coast better when you let off the gas so I think that should help. I was looking at the fuel trims and the computer is adding quite a bit of fuel so the CAI, ported TB, EGR tube and exhaust are allowing it to breathe a lot better but it needs to be tuned for it. I also want to get rid of the torque managment, add some timing and firm up the shifts.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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