Long story, and bought the car this way, so please no badgering about going to carb. 87 t-top gt fox body, with 94-95 carbed 5.0. Originally had MSD pro billet distributor, still hooked to EEC, car started and idled fine, revved fine, and drove. Seeing as how it still had EFI parts on it, I proceeded to correct this. Duraspark distributor and module, pulled out all the EFI stuff. Now the car will run for about 10 seconds and die. It runs great, no missing, responsive throttle, just kills the module. I have replaced all grounds checked with volt meter. Belt is not on (need power steering pulley), so I don't believe it would be a bad volt reg from alternator. Also replaced the pickup in the dizzy, tried with a new coil. I'm running out of ideas. Thanks for any help provided.