Also 068cam (Manual 69). Nodular iron crank, heavier capacity radiator, Dearborn heavy duty trans, one choice for rear gears(3.55) etc. and maybe quicker ratio steering? Mine came with the #48 heads. I’ve read that the manuals came with #48s and the autos with #62s, some say either/or. And interesting that the 69 alone came without stickers or badging. Some say they came with the 400s chrome air cleaner and valve covers, but mine did not. Maybe not specifically HO stuff, but my car also had the third return line from pump to fuel tank. The up through the trunk fuel venting with unvented cap and power steering cooler. Also all the air baffling above and below the core support.