Engine/Transmission (1998.5 - 2002) 24 valve with 1 generation pump vs 12 valve

[SDanos]

I have a 95 cummins in a 86 350 4x4 crewcab ford, the problem I am having is that it dosen't have enough power (for me) when pulling up a steep grade loaded. I had rebuilt it using industrial parts including 40 over pistons, industrial cam, and 190 hp ford injectors. I have put a 3000 gsk, upgraded turbo compressor wheel (WH1C turbo), #8 fuel plate, messed with the governor lever,and AFC housing. Fuel pressure is Ok, boost hangs in around 30 at WOT, with the wastegate just about blocked off, measured on the intake manifold. Due to clearance issues, I had to use a 1st generation intercooler. The truck has 3. 55 rear ends. I am used to a 02 powerstroke, and the two doesn't even compare when pulling even if I keep it in 4th. Would a 3. 73 rear end help drastically? How about a larger intercooler? I am also consdidering getting a 00 24valve engine (injector pump and computer was removed to install on another truck) and converting it to a 1st gen rotary pump. Would this setup, with the pump set up right, have more power than my industrial parted 175hp 12v? I know somebody will say to get a 24v with the factory computer and pump, but I wanted to get away from electronics, thats why the stroker is gone. any info would be appreciated