This ASP pulley adds up to 6lbs of boost. Once installed it will need a custom tune to correct air to fuel ratio. It is also recommended to buy and upgraded belt tensioner.
This pulley is also used on the Harley truck and Lightning. It a...
One of the easiest things you can do to boost horsepower in your supercharged Lightning or Harley-Davidson F-150 is to change the blower pulley on the crankshaft. This new 9" pulley has a larger diameter, which provides for more revolutions...
