On Thu, 17 Sep 2015 07:17:55 -0500, "Terry Coombs"
wrote:

There will be rebar every 4 feet and if I
can figure out how I might add some horizontal rebar about 2/3 up the wall .

You can give added strength to the block wall using a wire mesh, about
every 3rd - 4th course. Sits in the mortar.

Pic:
https://tinyurl.com/p986vag

There is also rebar channel block for the top course that can tie the
vertical cavity rebar. Lay rebar in and tie them together with rebar
twist ties.

Pic:
https://tinyurl.com/nt9awx2