Man, my ranchero is running great oh yeah. . . except that about a week ago it started to do this thing where the motor cuts out after i have been driving ten minutes or so . . then i pull over and it fires back up. . . . then it goes fine the rest of the day. wierd. The motor is a 200-6 , with a mallory unilite, MSD 6A, carter electric fuel pump. . . It's tough because there is no way to catch it in the act. . . by the time I pull over everything is fine and it starts back up like nothing happened I guessed it was low fuel pressure so I swapped the pump with a spare I had on the shelf and that didn't help. Now I am wondering what electrical component would just stop working intermittantly like that. . . and then work fine. Do coils die like that or are they all or nothing? Any suggestions of what to check next?