The first step is getting your engine to top dead center (TDC) before you pull the old distributor out. We used this trick where we removed the No. 1 spark plug (front driver’s side) of our AMC 360 V-8. Then we whittled down and screwed this cork into the plug hole and bumped over the engine with the starter until the cork shot out. It will come out with some power and shoot across the shop, so don’t stare at it. This gave us TDC on the compression stroke, and we could easily line the timing mark up on the crank.