you could modify the tilt ram enough to work. The machining cost would be more than buying used 85HP & rebuilding it to new ... but you could still do it. The trim is wholly inadequate even if you do come up with a thrust plate that allows it to work. It simply doesn't have enough square inches or bulk to reliably handle the larger horsepower.
If you want to modify something then try fitting '95 transom clamps and using a mercury single ram.
thank you i am sure your right about the bad pump.i am not much on outboards. but i am a pro welder. weld and build fire trucks for 20 years .well thanks again.