What Engine to go with

Nice.

I have one as well. (74 Duster 360 car)

If you have the original engine, and you want more power.....I would suggest building a LA Based 366 (.030 overbore)....and just skipping the Stroker setup unless your budget allows extensive machine work, and custom/kit parts.

If your budget is unlimited.....do the Hemi with OD tranny setup....gas prices arent going down anytime soon.

There's my vote.