Runs fine, and then just dies

[michaelmfl]

I was driving my nearly stock '91 5.0 along for about a half hour or more, and then the engine started sputtering and slowly died. After letting it cool down for a few minutes it started back up again, and runs great for a short time, and then it dies the same way again. I was able to drive to a friend's house where it is now sitting. The weather was sunny and warm, but not very hot. I spent the whole weekend putting on a new convertible top. I need to get a lot of miles out of the car to make that job worth the while!

Thanks for any help!