I know the 1 and 6 pistons are at the top, I'm just not sure at which point in the stroke. Unfortunately, the engine is still on a stand, so no flywheel. And I took the rocker arms apart to clean them and the shaft, so they're probably way outta whack. I have the side cover off, so I can watch the actual lifters.
To confirm, TDC for the number 1 cylinder is when the number 6 cylinder exhaust valve is starting to open, correct?