Originally Posted by Old Deis

If I am right, you have a cigar hose on that car too, it is an odd shaped fuel line between the metal lines coming from the tank, and the filter. Often that line gets rotten with age. When it does sometimes it leaks fuel, other times it sucks air into the line. Car won't have any power if it does that.
Pull it off and plug the end, blow into it. It air comes out the sides, replace it also.