Re: 6.6L pump
It's a Bosch. It's got the set screw under the 3/8" allen plug. Quick reference is in my sig. below. It's listed with IH, since it's the same style pump.
commuter: 08 VW R32, or 67 F100,300,offy intake,edel carb,274* cam,header
Work truck:'94 IH 4900, DTA466 lightly bombed(#0 fuel plate, timing at 22*, 3 clicks tighter gov springs), Allison MT653, Voith retarder, and straight piped