Wish I knew how to tune them or where to go to get it tuned....The last tune before I changed over to the Air gap intake cost me just over $600.00 They did an optimum tune with jet/metering rods and changed out the weights for timing advance. They did an awesome job with its performance, but the tune cost me as much as a new 750 double pumper....thinking of getting both carbs tuned to the engine and just using the 750 on the track
