There`s been some testing to prove carbs make more power especially down low. Better cooling of the intake charge etc.............I don`t live my life by "too bad you didn`t do this or that" Mike cos it is what it is and I have zero regrets and will NEVER convert to efi or just jump on the E-85 wagon cos so and so went faster. Old skool and doin just fine and I`m only getting started........trust me...........