ryanb790,

My notes are in another location, but I think the triangle is a valve timing mark. The ball is the one you want. It actually would make little difference as the distributor has many degrees of rotation both advance and retard.

If the available rotational adjustment can't get you in the ballpark, you can always parade the wires clockwise or counter-clockwise one hole.

The timing mark on the flywheel will get you close, but it probably isn't where you will end up timing the engine to...or maybe you will!

Stuart