Here's what's going on--
I have had to bypass the ballast resistor and fed a full 12v to an Accel superstock coil. The problem is the other day it seemed like the coil overheated. I was driving home when it sputtered and just shut off like I'd turned the key off. It wouldn't restart till about 10-15 minutes later (after it had cooled a little) and when it did it ran fine.
I know feeding it the full 12v will cause considerable heat (and sitting on top of the motor doesn't help), but I'm not sure of the best way to cool it down.
I was considering moving the coil from on top of the engine to the pass inner fender where it can get more airflow (and possibly keep it cooled down some), but I'm not sure if it will be enough.
Putting a ballast back in isn't really an option since the lowest resistance I can find is 0.8 ohm and it drops the voltage to 2.2v!

This is the 87 D150 318 I had to convert from SCC to the old style ignition system.

 

got the same problem with the 318 now. ****in horrible eh ?

 

This is a new problem for me, but I it only happens when it heats up. I can get a wire kit to relocate it to the fender, just don't have the $$ to do it yet .

 

Yeah mine just shuts off, and it runs on only 7 cylinders. definately not cool

 

Ya it's never fun when your truck don't run right. Have you done a full tune-up on it? You might want to check the ign module too. That may be the reason for your missing cyl.

 

What does the manufacture recommend running with their coils?

 

On which coil? The Accel coil doesn't say, it only says universal 12v. The reason I went with the accel is I have a buddy that's been running one with a full 12v on an old ford for 2 years with no issues.

 

Edit: Double post. Dang lag.