I only saw the trailer of this film on TV, and I only remember is one scene:

There was a guy in overalls and a farmer-type hat. He got an evil look in his eyes, and when he opened his mouth it was full of razor-sharp teeth.

I don't think he was a vampire -- at least not in the traditional sense because he wasn't limited to two sharp fangs -- but he was definitely something that either used to be human, or was pretending to be human.

The minute I saw those teeth, I ducked behind the couch!

Anyway, somebody said it was Dark Night of the Scarecrow from 1981, but that guy had a cloth over his face. The creature/person I'm referring to had similar, farmer-type clothes, and all those pointy teeth...

Sharp, pointy teeth!! :eek:

Sounds like Jeepers Creepers to me! UPDATE, I just noticed that you said it was a 70's film, so probably not.

Could Be 80's Horror Pumpkinhead Or Rawheadrex