what kind of horsepower?

well i unfortunatly havent gotten me a project yet but i got my eye on 2 dusters actualy one of them could be a demon anyways the one that seems to be most promising looks to me like it could be a 340(blackedout hood no twister emblems) i was wondering what kind of horse a relatively stock 340 would have im in in the macon area if anybody is around here who knows where a duster/demon is id appreciate the info our budget is 4000 im not sure how far that gets me in a project so any info would be cool