Hey folks.

I've got a 4d55 with the upgrade 4d56 head in a 85 Mitsubishi 4x4 pick-up truck.

Here's the issue.

From a start or at low RPM's the truck has almost no power, I have to ride the clutch a little to get going. Driving down the road at 2500 rpms it feels okay but I'm not familiar with these trucks so I'm not sure exactly what it should feel like., my gut says it should have more power. I've put in new injectors, a rebuilt pump. Valves are set at .010" cold. I've got a inline electric fuel pump before the fuel filter. It pushes 3lbs (i think) I don't have the tool to set the injection timing perfectly, but with my VW diesel I've done okay by listening for injector knock and then backing the pump off as a way to get it close.

Any help would be awesome. I'm starting to have a pretty big hole in my wallet over this truck. Ask away if you need clarification. Thanks

Thorin