If you have a WJ, just rebuild it to factory specs, and throw big horsepower at it.
For tuning the pump, there is an adapter for the bowl that will accept Berk style droops, wedges, diverter, etc.
There is a place diverter available for the WJ, without havind the Berk style adapter
If its a YJ...total different story, energize it.
Dan'l
