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Message: [QUOTE="Charles, post: 1566197, member: 103"] I have talked to Joe at Scheid and Ron at Hypermax and everyone else I could think of.... it should work. I have a couple Mack E7 Unit pumps on my desk and drew up a quick Cad drawing for length and it should be roughly 15 inches. That would put you just in front of a turbo in the stock location. Intakes would have to turn up. I think I can use the stock Mack cam and turn the EUI lobes off and tig them onto the right round stock and make a cam that way. Use my indexable rotary table on the lathe to indicate the lobe positions and obviously match them to the engine firing order. Mech pump injectors can't take the pressure I'm afraid. Might use the hypermax sleeves and see if they can be modified to hold the Mack injectors. Don't know. I'm afraid you would massacre a mech injector. I blew 7.3 fuel plates and passages to piss one time a good bit below this pressure range in very short order, like a week.... Might have to deal with the symmetrical spray pattern. Good news is that they are 8 holers. I found a video of one pop testing and paused it. Bad news is that they are sized to produce peak pressure at 1800rpm. While that means it would be a towing ANIMAL.... at 4000rpm you would over-pressurize and blow shit to bits... I would like to find a salvage superduty and grab the engine and various stuff off it and see if I could work a running model into my old red truck with some valvetrain basics like springs and pushrods and some studs and see if the unit pumps can follow the cam profile at 3000rpm, 4000rpm and beyond or if they start bouncing or anything. If they could function at 4000+ a stock forged might go 800, 900+ on fuel. Built motor with compounds should go 1500+ [/QUOTE]