My camaro currently has 373 gears my situation is since its been nice out ive been driving the car back and forth to work. i started out with a 650 double pump then found out it was sucking vacuum through a worn out throttle shaft.then i went to a 750 vac secondary but i was getting terrible gas milage so i went to smaller jets wich caused a lean spot . this car cruises between 25 and45 miles per hour 15 miles one way and i burn about a half a tank , no lie . so i put a qjet on it gas milage did improve about an eighth a tank . the car runs alot smoother with the qjet also . my question is would 323 gears improve the milage over 373? the cars not raced and i tamed the motor down alot from were it use to be . im looking for a cruiser with good gas milage