Rspears I do plan on controlling spark with the ECU. The new FAST XFI sportsman has that capability. The Sportsman has self learning mode, but it can be tuned with a laptop if needed. The lower priced EZ2.0 ECU only has self learning mode.

The main problems I've come up with are whether the old EGR passage will serve as a vacuum balance and could it actually be used to supply idle air. Those are fundamental problems. Other than that, it's just straight forward machine and fab work. The throttle bodies will need to be angled slightly up to clear the valve covers.

If the idle air idea doesn't work, I could always go with a simple mechanical idle adjustment like a carb, but I would prefer computer controlled idle. The main fab problem is getting the throttle blades fitted well enough to the bores to seal off at idle. I'll have to have a way of synchronizing the throttle bodies, too.

Of course I would do thread to document the process.

Mike