Hey HotRodDave,
Isn't this designed for complete take outs and crate engines?

https://www.manciniracing.com/mo5crheinkit.html

A friend of mine used the 6.4 kit to put a 6.4 in a old Ford F100 and he said it couldn't have been simpler. I would go this route but my engine is far from stock so I got an MS3. Hopefully Mike helps me tune it when its finished. laugh