I have an 89 bronco with a 91 302 and it keeps burning out ignition modules, I've replaced the pick up coil in the distributor already with no luck, it'll run for a few days then fries the module, I've replaced the whole distributor even with a junk yard part and that seemed to work..... For about a week, now it's fried again! Any suggestions?? I put this motor in 2 years ago and have had no issues until now, I've made no changes to anything......

 

And yes I use the grease that comes with the modules, even cleaned off the old grease real well first.....