it seems most of the time when i go to start my 86 with a 2.3, auto if that matters at all with a carb. when i turn the key to the start. it will start right up. but as soon as i bring the key to the run position its like i turned the engine off. takes 3-5 times before it will stay running. is there a dual pick up in the distributor ? or could it be the ignition switch or some thing else ?