The 2 inch height is the killer part. The stock filter..... isn't it 12-3/4's? If I'm right, that would leave an 1/8 all around. I'll check , BRB!
DAMN! Close, the Fram CA305, stock 4bbl air filter (Check that part number) is 12-5/8 across and 2-1/8 in height. That leaves 3/8 to be divided by 2 to even it out on both sides.