After lots of trial and error trying to get this car running good, I removed the Injection pump on my 76 300d. I think it may have a bad lift pump but I don't know. Either way I think I am going to buy a different injection pump and install it. I am tired of being covered in diesel and willing to spend the 300 dollars to see if this fixes it. I want to make sure I have installed it correctly!! Any help would be greatly appreciated

Things I have done:
Valve Job
compression check
diesel Purge
New Injectors
drip timing/tried loosening pump and running it. (wouldn't start)
Checked cam timing
New filters
New fuel line
running it with inline electric fuel pump
running it with fuel can under the hood

Disconnected every fuel line and put them in a fuel can to ensure no air leaks from filter housing or hand pump.

After doing all that I got pissed off and took the injection pump off.

I had the car running before but it always blew white smoke and would die after driving for a bit. Seemed like I always had better luck with the electric pump connected and at times it would only stay running if someone pumped the hand primer.

This car sat for around 10 years. But ran before that, my dad bought it in Texas and drove it here to Wisconsin.