Working on a car that runs 10:1 comp, 29 PSI boost, no intercooler, 116 oct, MSD DIS4, Denso's, and it uses an EDIS with stock coils. The ignition has caused me alot of grief. I have tried too many things to list to fix it. I have it bandaided for now. I also have another plan to fix it properly, but I think this would be a cool topic of discussion. Anyone have something to share? Oh by the way here is one of my my ideas. Use a crank trigger and a Speed Pro (FAST) DIS module to drive the DIS4 to drive the MSD High output GM(AC DELCO) twin tower coils. This system should handle 8500 rpm and put out 50kv or 135 Millijoules. I talked to an engineer at MSD and he was very helpful. His knowledge of igniton systems left me feeling like I had "Forest Gumped" my way this far. He set me up with a new product and I want to tell you guys about it as soon as I can. I know that the electromotive system works well for us modular guys, but I like knowing all the alternatives.