All new parts and still burning ign modules.. what else to check

[NASTY-LSX]

New cap new coil new rotor new module (AGAIN) Brand new Alt.

After all this new stuff the truck will stay running for 5/10 seconds then just burn the module..

So I borrowed one of my friends good hei dizzy and installed it. 5 seconds later it burned up..

I have read and read and found nothing to remedy this cancer.. What are my other options before burning my truck down?? Thanks.

Yes im using the dielectric grease.

1985 K20 4x4 5.7