Not with the parasitic "E" pump.... 
I am thinking about some serious hull modifications that may be required.... 
GT
Just what is it with the JE pump that pisses you off Glenn? It is no less, or more, efficient than any other Berk pump out there. Is automatically set back, like everyone modifies their JG's to do, has a built in ride plate. Yes, they can benefit greatly with a shoe, and other mods depending on the hull, but we're talking 70 ish numbers here. I think Ralphs boat would probably STILL pull off 80+ MPH with a JE pump, maybe more moving the motor back a tad.
My point being, there's NOTHING WRONG with the JE pump. It just does not work like the traditional Berks, nor does it necessarily respond to, or even accept, the typical "hot rod" mods normallly done on those. It is already "set-back" eliminating a ton of work there, it sits much lower in the hull, thereby lowering COG (Can't do that on a JG) AND eliminating the need for "Droop Snoots, etc to get the thrust angle deeper in the water.
It's intake is a little on the smallish side, not much. But if you compare the intake size of a JE to the SUCTION HOUSING inlet size of a JG, they're damn near the same, and the JE has this dimension right in the water. No intake required, No need for inducers......

IMHO, the JE can perform and hang with any JG given the same mods, tests an treatments. Both can and will benefit from loaders and shoes, but boats with the JE need to be handled a little differently. Most of the mods done to boats to move COG to the rear has already been done, etc, etc, etc. I don't get why it's so hated and compared to a Panther???
From the suction housing back, your JE pump is the same exact animal as every other Berk out there.
Ray