I believe that the consistancy of EFI vs Carb is major. Throttle response, milage, and some of the new systems give more HP. Computorized allows for control altitude and other adjustments that you don't have to do, the computor does them for you. The original look is with the carb, and someone that know how to tune carbs can do it all themselves. Simplicity can be there with EFI after the install. Wiring can be a pain, but may be worth it. just my $.11 (inflation)