After listen to some of you on the site thanks to all by the way. I replaced the module in my hei dizzy in my 455. After a new module she fired right up ran perfect. Pulled out of the garage and she died in less than two minutes. No spark again. I had the car wired by a shop locally they have the car wired from the ignition under the steering column with correct and everything with fuses between the battery neat and all but I am lost and confussed as to what is killing these modules. Is the dizzy getting power all the time and that is killing the modules or what hellllpppppp

 

Check the two wires between the module and the reluctor pickup. Very possible one of them is broken and only making contact part time. Next would be try a different coil.

 

To verify the wiring, with the key in the off position, you could check for voltage at the pos (+) terminal on the distributor. It should read '0'

 

Try to start the car again. If it still doesn't start, remove the module and bring it to the auto parts store to check. I've had them bad out of the box before, so I always make the counter guy test them before I leave the store.

- Eric

 

Your coil has moved too many times and flexed the wires to death
Dist has to come out and be dismantled.
Ck the bushings, put fresh grease in the top one's cavity
replace bushings if worn.
I am sure a new HEI pickup coil will be dirt cheap.