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Jetting on the dyno is not the same as the jetting the car needs in driving situations. The load on the motor is different, rates of engine accelleration are different, etc. Reading the spark plugs is the best way you can determine fuel need assuming you don't have exhaust gas temperature probes, or a dragstrip. Don't forget the powervalve. It should open at about two inches of vacuum less than what the motor idles at. The power valve is stamped with two numbers, yours will have a 6 and a 5 meaning it opens at 6.5 inches of vacuum. Make sure the diaphram is not ruptured on it either. Depending on your motor, gearing, and trans,it may like a 850 double pumper even more than the 750 vac sec. carb.
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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