CARBURETOR BORING The Crank Shop has developed custom oval and offset carburetor boring. Depending on carburetor design, we use the process that allows us the largest intake for maximum performance increase. The top...click here to purchase units and parts.
TUNNEL PORTING Extensive machining of the upper crank case gives increased flow and HP throughout the range. Should be used with 44mm carbs and intake minimum. Send case, intake with rubbers and car...click here to purchase units and parts.