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Ever since I put in my 67GTQ on stock fuel, my car wants to go lean. At first I had my AFC hooked up wrong and thought that was the problem. Now I have my AFC2 hooked up 100% correct, I have the FPDB and today I ran 5 gallons of C14 mixed with a couple gallons of 94. I also maxed out the AFC at all RPM points above 4000rpm. The car still goes leam. I saw 14:1 and 15:1 on 2 different runs today. Also, I only hit 17.7psi on one run and 18.0 on the other. What could be my problem? I assume my WB is working properly since at idle it cycles between 14.4:1 and 15.3:1.
The first day I had my WB hooked up the car could stay around 12:1 at 16-17psi and that was on 94 octane. What could have caused this change? Do I just need to get a fuel system? I would assume that the stock fuel system could sustain 18psi on racegas.
The first day I had my WB hooked up the car could stay around 12:1 at 16-17psi and that was on 94 octane. What could have caused this change? Do I just need to get a fuel system? I would assume that the stock fuel system could sustain 18psi on racegas.