Tune on Dyno of the Carburetor.

Stage 1 in combination with a Big Bore kit.

The ultimate Twin Cam, built 124 ci on your original crankcase and power up to 150 plus on the wheel.

Tune on Dyno couch of the Delphi injection with Diag4bike

Stage 2 and a chest upgrade with S&S pump and Cam Support Plate

Stage 1 in combination with a camshaft.

Stage 3 with S&S cylinders and pistons 100-110 ci kit