Jon, this appears to be one of the Titus cars, either the car Milt Minter drove, or their 'mule' back up car. It would be very early in the season as they would be hoping to still run the 303 Pontiac engine, but it wasn't yet homologated as 1000 units had not been 'sold'.
There were cars using the '69 Firebird front in testing but I have not seen any race pics of the cars using this front until Craig Fisher ran the Todco entry in the '70 T/A season.
The wheels don't look like the Minilite but more like the American Racing that was common prior to '69.
There is more information coming out all the time on these cars, so the book is still open.