Well I think I have found a solution.

I drilled a passage from the side of the carb. main body between the venturi`s which intersects with a hole coming up from the bottom thru the baseplate inline with the air cleaner stud.
This base already has a 5/8 recessed hole in the center of the throttle blades. I will drill it thru and tap 1/8NPT and thread a nozzle there spraying straight down into the top of the blower.
The outside passage will also be tapped to plump the high pressure water/meth.
The rest will be like any other install.

I will take some pic`s once its done.