LARRY LERMA

This may help in your case or not but it has always served me.Things are needed for your beauty to run ignition at right time so check for spark at plug take out a plug wire attached groud plug look for spark ,if none start backing up the ignition system with 12 volt tester.POWER TO + SIDE OF COIL?Take coil wire off at distributor and hold 3/8ths inch from a ground and crank over checking for spark,if you have spark there but not at spark plug your cap or rotor it kerplunk,it's just a step by step elimination.Also you can draw a picture of ignition system and use it to cover all bases.Next you need air so check for a restriction.As for fuel you can pull a hose off carb. supply ,crank and check for flow ,be careful here maybe have a can or bottle for fuel to go into.Again start backing up the fuel system till you find your problem.You said I believe that engine quit at stop light,was there an over flow of fuel (stuck float will do this).This all may be too basic for you and if it is I apologize but it's worked for me in 20 years in Naval Aviation and 27 years as an auto mech, . all the best to you.Larry LMLERMA@msn.com