No idea, sometimes with mixes it's so hard to tell what the parentage is. I do think that your dog's head is a bit more refined than many of the pit mixes i've seen.
Look at the BRAT mixes:
http://basenjirescue.org/DOGS-MIXES/Default.htm
Check out Tia. I think that's what you are looking for. :)
Then look at Tyson and Shiloh. Not the right coloring, but similar build and coat….
We got Killian from a breeder in Ohio–-Jim Edgerton. That's where he had gotten our previous male basenji. We took Logan and Jasmine to his place and looked at several 1 year olds and a puppies and Jasmine eliminated the others and we agreed with her pick.
