I still want to hear some feedback about this pump: http://www.advancedautomotion.com/product_info.php?cPath=49_118&products_id=109
That is looks to be a VW LT 2.8 TDI pump. See above in discussion. Works great, the low-smoke governor is a bit of a hassle though, even when it's effect is reduced. I like the power of the straight open-cage governor/spring setup.
The seller's info is, as expected, not entirely accurate - the 4BT is most commonly a truck engine, not generator engine. The timing advance system isn't that much different, not enough to make a huge difference, anyway...300 ft/lbs, yes; 300 hp?
No way, dude.