Ok, swapped 305 for 350, 89 RS. Anyways I cant get the car started without Carb Cleaner, it just will not start! but once we squirt some b12 in the TB it fires right up, runs and idles great. Now ive replaced the fuel filter, pump, both injectors, and bought a new TB, i can only assume that maybe it just has some old gas in it? Would old gas keep it from starting? Its been sitting for about a year, maybe a year and a half. Is there anything else that may keep it from starting? I really appreciate any info

 

You have a bad fuel pump relay, the fuel pump however get backup power from the oil pump switch once pressure is built so once you get it running on carb cleaner the switch is powering the fuel pump.