I have made progress again on my car but after installing a new fuel tank and cleaning out the carb and the line /with a new fuel filter, after a minute or so of running it starts to miss a little then progressively gets worse until it chugs to a stop. Is this a sticking float or needle and seat deal. this thing has performed perfect until now. clean it again? whats next?

       A  L  A  N   F  R  A  K  E  S   ~  Tulsa, OK