Mine has a D on the exhaust and a B on the intake. That's on the front head, but mines a 92 VR-4. Also, I just double checked, and the cam sensor is definitely on the intake cam on the rear head.
As long as you line that crank gear up to the mark first, you'll be fine. I just didn't want to tell you to line your cams up, then try to spin the crank to line it up... You'd most likely run into some valves along the way
