I've spent hours searching the web for any kind of paperwork, diagrams, or schematics for this thing and I can't find anything. Does anyone have any ideas where I might come across something?

You can call whipple & they can Email you the instructions, What do you want to know?

send me your email i have all the install instructions

PM sent. The problem I'm having with it is that the front of the charger gets really hot, with my infared temp gun I'm seeing temps around 300 which doesn't seem right to me. It started happening halfway through the season last year and I need to look into it. It'll stay cool all day long if I'm just putting around at 1000 rpm but I can only get it up on plain around 3000 rpms for about a mile then it gets hot, running wfo I can only go about a quarter mile.

it is getting oil and draining into the valve cover?

It has its own oil reservoir

oil is feed from the engine then drains back to the motor through the valve cover

I'll have to take a look again once I get back down to the boat. It's has it's own dipstick and drain plug in the front and the oil is a totally different color than what's in the engine so I always thought it was different. I have a 502 mag mpi in the boat and the PDF file you sent was for a 500 hp efi so I doubt it would be that much different, they look the same in the pic on the top of the file anyway.

My sidemount 2.3 on a 502mag mpi did not use engine oil to lube it. It was self contained.