Hemi Swapping a perfectly good 70 Duster

I'm sure you're aware of the fitment with the long tubes and the proportioning valve..

what's your plan for fuel delivery?
I don't have a prop valve since I run 4 wheel discs. But the lines do pass near the location of the stock valve.

The car already had port EFI with a MS3X controller. It has an in tank pump in the Tanks Inc tank. I autocross regularly with varying levels of fuel and never once had a fuel starvation problem. I'm currently using the "corvette" filter/regulator and stock reproduction 3/8" steel fuel line. Technically this will work fine, and I may very well get it up and running with this setup. But the plan is to swap over to a return style regulator at some point.