Electronic ignition help needed !!

Those kits being sold on eBay with the blue ECU are not factory-packaged kits or anything. They're one particular vendor selling off a large stock of generic ECMs with any of several different distributors and a prefab wiring harness. The wiring harnesses tend to be pretty good, the distributors are great if they're new and questionable if they're "remanufactured". I'd be tempted to cast a suspicious eye on the generic ECM, but really the only sure-fire fix is going to be systematic diagnosis with a test light and/or multimeter when the problem next shows up.