Car dies, I'm out of ideas.

[Three02much]

Ok put in a new clutch this weekend but the electrical issue came back. i drove it probably 50 miles during the daytime in 80+ degrees after i replaced the ICM. Drove to a party the next day, left around 11 or 12 pm got on the highway and the car began to die again, but when it did i would press the gas a little and it would start to run roughly and backfire then run fine for a minute. it did this for maybe ten minutes then ran fine the rest of the way home, i even got into it a little to see, everything ran fine. next morning i started it up and could tell that it was running poorly, it wouldn't idle well, kind of hard to start, did not run smooth ( like the timing was way off )