A Qjet while more of a headache to tune up is an excellent street carb. I'd start with one off of a 305 ci mid-70's truck engine. The calibration will most likely be close. Once the QJet is set up it will give excellent part throttle repsonse due to the tapered primary metering rods and triple primary booster venturis. If all round perfromance and economy is your goal then give the Qjet a look see.
