Anybody have experience with really old Diesels?

Jeez, I guess he used that 4:1 granny gear a lot because my friend's can hardly get up a slight grade in 2nd gear. Who knows though, maybe it won't be too bad after a tune-up.

I figured I'd probably have to consult someone experienced with these cars. I'll have to read up on diesel engines too, because I just know the bare basics about how they work.

edit: So I probably couldn't get it to go at least 70 mph? I think it might be possible if I figure out exactly how the governor works. It's supposed to cut off fuel delivery above ~3200 RPM.