Do you just want efi in general? Unless you daily a car it will be a long time before you recoup the cost, even at 9 bucks a gallon. Might be just as well to save the coins for gas.
to be honest, I am terrible with carbs due to hearing problems which prevent me from doing a proper tune by ear. Also, the improved driving response, slight improved mileage and better starting in different weather conditions makes it a plus upgrade. When I drive my mopes, I drove them alot to relax and can easily put 1-3 tanks worth of fuel a week during summer.
