My son has an 89 RS 305 TBI. Sometimes, you never know when, it will quit running, not sputter or anything, just quit like the ignition was turned off. When he tries to crank it, it won't turn over or make a sound or anything. If it was just the not starting I would say there was probably a loose connection going to the starter, but what about when it just dies like this? If he waits some period of time then it will start right up. Any suggestions would be appreciated.