Hey guys. Not exactly new to EFI swapping, I did my first carb to GM TBI sometime in the late 90's. The swap ran stronger the the carb but always felt on the rich side. So in 2007 I bought an EBL Flash upgrade with the intent of tuning with a WB O2. That never happened and I'm on to a new project. What I'll be asking hasn't exactly been posted too many places. That question is using the 7747 without a distributor and using a wasted spark unit on 6 cylinder. I found a Corvair website that sells this EFI conversion. I can't see why it wouldn't work on other GM 6's.