[cleanspeed1]

I was curious and took a look at the DOD system. Pure genius. And most people who have cars with them are getting really good mileage out of them. Even the larger engines like the 6.2 V8 that were tested by GM in the Corvette picked up 5 mpg using the system. You can't ignore something like that. The reasoning why they don't offer it in a broader sense ranges from insider politics to how it sounds when it transitions from 8 to 4 cylinders. Mechanically, the only problem that is there is the limitation in lobe lift with the camshaft. I'd compensate with higher ratio rockers.
I would like to see what would happen if you ran your combination on E85, what kind of mpg you could get out of it.