Ford: 95 f150 no spark, control wires, bottom check

Question
I cant get any spark. i have changed the coil, and nothing i changed distributor and it fired up ran for about ten minutes then died. no spark again. I changed ignition module and got it to fire up for a few minutes then died again, back to no spark.

Answer
check all the wireing going into the distuibtor, look for any old/broken corroded wires (im not refering to the plug wires, the control wires on the bottom) check that first there is a test method in the 1980-1996 F-series Hayens manual detailing how to check the ignitor circuit.