MSD Distributor Install

The black/red wires coming out of the box are 12G

Should I continue to run 12G to the battery? Upsizing to 10G seems too much

10 WILL CHARGE BETTER .
Of a side note , since my post of running my coil laying down (always have) , mine died , fortunately I had a new alum. housing ford type laying on the bench !
First coil failure in 50ish yrs of laying them down !