I changed the power valve out (actually used the one I took out of carb originally) fired it up and all is fine. Still not sure exactly what size the power valve is since the markings on the original are no longer there. Of the 2 power valves I received in the kit the 2.5 was visually the closest match, but obviously was too small. The 4.5 supplied in the kit may have been OK, but i put in what I knew should work, Keep the 4.5 for a backup if needed.Thanks to AllDodge, Lou c and everybody else for your suggestions and tips.