Wow- that's some great mpg for an older truck!

That is in nice looking shape for an 81. Are those hood vents functional or just show?

I think it needs pizza pans.:p

On many Datsun models the vents are for show, but these do have a ~1.5" opening to under the hood. *shrugs*

Its not in near as nice of shape as it looks... paint colors suggest a front end collision at some point, seems repaired though... Laundry list of things to fix...

I think the drag of the wheels is the least of my concerns so far... :)

The smokescrew works better when it's not loose flopping around in there...

What's a smokescrew?

The injector pump has a 'smoke setscrew' which determines the maximum amount of fuel injected... Mine was basically nonexistent, so the engine was seeing as much fuel as the pump could supply under heavy loads!