I have a f350 91 7.3 n/a 4.10 5spd 7300lbs 3in exh, it has newish bb code injectors with 15,000 kms on them, and now a rebuilt 5070 turbo calibrated pump. The compression is good with the lowest 400 and the highest 450. The power with the new pump is quite a bit better off the line but it pulls hills the same as the old pump (85 kph 6% grade unloaded). When I put new injectors in and even the old ones it would pull the same hills easy. The new pump also smokes black at about 1/2 throttle, anything over that and it will cover a small car in smoke. It has been losing power since i started running wmo in it at about 50% diesel and 50% wmo with 75/25 diesel gas mix so not much gas. Ive probably ran about 400 litres of the mixed fuel through the engine since June. I work at a shop so when someone puts alot of diesel in there gas vehicle I just burn it in my truck. I thought my pump was shot so I put a rebuilt one on, and not much change in power. Could have the little bit of gas ruined my injectors or could my pre cups be coaked? Also the truck runs great with not much smoke when cold. I am also running pure diesel since I put the pump on.