Why the /6

I inherited a 1983 Dodge Power Ram a few years back. It was my grandfathers, and he used it to haul gravity boxes to town. 225 slant backed by an NP435 granny gear 4 speed. In stock computer controlled choked 1bbl form, I had to floor it to maintain speed up any hill. Put a Carter AFB from a 273 on it with an Offenhauser 4bbl intake, converted to standard Chrysler electronic ignition, and freed up the exhaust. Takes hills with ease and finally keeps up with traffic:) I remember riding on the passenger side into town with wagons as a kid in the 90s. Currently I've collected most of the stuff I need to build a draw through turbo setup for 8psi.

People ask me why I do not go v8. First off, the original slant has but 110k miles on it, so lots of life left. Also, I do not need to buy a different radiator, motor mounts, bellhousing, throttle linkage, exhaust, or a different engine itself, let alone one that is not in need of rebuild that would put me anywhere close to my under $400 spent on my turbo set up so far. Going to start the build soon too:) I have achieved 16mpg highway, and am looking for a few more mpgs and a bit more pep, as well as the fun of the build.
This is a 4 wheel drive? I am curious cause I didnt think they put the 435 behind 2 wheel. I have same truck but an 86 and 4 wheel.