Diagnosing Distributor - No Spark Chase

well the battery is dead now, so i need to steal my bosses battery tender tomorrow. I did replace the ECU with an old one i have (I got drunk one night and decided I absolutely had to had have a mopar orange box). Still no spark out of the pig tail. I did notice that the ECU is held on by two different sized bolts, both of which will not tighten very well as the sheet metal they thread into appears to be pretty wallowed out. I think that someone replaced the original bolt with a bigger one when they stripped the stock one. does anyone now of a better way to ground this thing? Seems like there should be.