Thermoquad low vacuum readings

Forget about the secondary air door for now. The TENSION will only effect a/f for a moment. Remember lean makes the most power, and is the most responsive. When a motor gets tuned to the max on the dyno, most of the time the carb is so lean it won't run on the street.( At least won't have good manners. )Forget the jetting for now. You have great a/f #'s already. You just need to work on the metering rod timing. IMO