[NoSub]

I'm looking for ideas of where to start with my problem. I have an '86 Targa that was running fine all day (drove to work & back, 70+ miles). Two hours later, I took it out again, drove about 1/4 mile and it died. The starter would crank and crank and cranck, but engine wouldn't start. Towed it home. Let it sit for 2 hours, tried again, still didn't start. Next morning, started up fine with no problems (although I didn't drive it, it idled fine until I shut it off about 5 minutes later). I let the car sit for a week. Then I started it up, drove around the neighborhood, and took it out on some country roads for about 10 minutes, and it ran fine. As I pulled in the driveway, it died again and wouldn't start. Cranks with no problem, but not even a sputter. Next day, starts fine again.

I'm guessing that because it dies immediately without coughing or hesitating, it may be electrical vs fuel. Any thoughts? Ideas on what to look for?