Wowww! Beautiful burb! Is that color code 503? My vote would be to retain the original Qjet and rebuild. If it needs a complete rebuild you might consider sending it out to a reputable Qjet rebuilder such as Sean Murphy Induction in Huntington Beach CA or Cliff Ruggles (not sure of exact spelling or location) for a quality rebuild. A properly tuned qjet should yield best MPG. A taller rear gear (if available) for your for your particular rear end will also help with mileage on the highway especially if you dont tow much.
