9.5” or 10.5” Bell housing....opinions?

I believe you just did...
subscribed, as I'm going to be rebuilding the A-833 in my StreetVan this Winter and i would like a better, smoother clutch set up for sure. I got a bad left foot and that big spring ain't doing it any favors.

Then get a diaphragm clutch. You're supposed to remove the return spring when you do away with the Borg and Beck. Makes it a LOT easier to depress.