I rebuilt the carburetor that I an going to use on the 410 today.
Its a Motorcraft 4300 that came off a 1974 Ford F-250 with a 460.
These are 610 CFM carbs and should work just fine.
Maybe an upgrade later on.
I ran it for a few years a long time ago on a 400 that I had in my '79 F250.
The phenolic carb spacer that I picked showed up the same day as the carb kit.
I got my new clutch today.
I bought the new flywheel the day I made the deal on the 410.
The crankshaft used in 410s and 428s (same crankshaft) are
externally balanced unlike all the other Ford FE engines that are
internally balanced so the flywheel on the current 390 wont work
on the 410. I bought new flywheel bolts too.
Its getting closer to getting dropped into the old truck.
Hopefully next week.