PERCYS ADJUST-A-JET - PER-15007

The Adjust-A-Jet does not affect the original emulsion or idle characteristics and will bolt on with little or no modification. It may be used on any Holley or any other similar Holley type carburetor. The alcohol block shave larger orifices to accommodate extra alcohol. It is supplied with a chart that compares jet sizes to a particular number of turns open. This is only to get the engine running; after that you no longer need the chart because you are making a rich/lean adjustment instead of a jet change.