WTB vacuum advance can 10-11*

Folks,
Looking for a Vac advance can for a small block, factory single point distributor. Curved-arm style, with a minimum of 10x on the arm. Not sure what they come in but I need like 10-11* at the distributor, 20-22 at the crank. Not interested in modifying lower value cans, I already have one to hack up.
Thanks for looking through your stashes.