Dany's Magnum swap is back!! with Ignition woes now..

I could be way out in left field, or perhaps I missed something when I read the post. It doesn't do it when the motor is cool, but does it when it's over 200* ? You said the next morning it pulled fine until 205* then the miss returned? Are you sure it's not fuel related?
That's right, Heat related.you can hear and feel it popping out the exhaust when its missing.