Jon, my '68 was a base 327 car, and it came with finned drums front and rear with manual brakes. In fact, it still has the original drums on it. I got the car in 1983, so it's unlikely anyone had added the finned rear drums because of the extra cost. I don't know if it was a 2-barrel car because the original engine had been replaced, but it had a factory manual transmission and a monoleaf 10-bolt if that helps.