Hypothetically.. What's stopping a bare shell nm35 to have any engine dropped in and wired up....
Now think bare shell again but putting a vq25det in there... to run everything squarely off an aftermarket ecu would be hard if we didn't know parameters/ sensors and data... but we have that now... so if we go back to the basics and say fuel and air adjustments first, then throttle by wire then electrical input, then sensors and cam timing, would that be the harder route to take just to run that engine on its own without a factory ecu in place?