We have an 835 Versatile tractor with a 855 cummins in it. Its a 1982 model rated at 230hp and 800 lb ft of torque. I would like to know how to get up to 250hp and 850 lb ft torque out of it. I think all one has to do is remove a plate from somewhere on the injection pump and drill a larger hole in it but I'm not sure of where to do this at.
I hope someone can help