There are several ways to get close to TDC using simple tools. Try this method. Remove the valve cover, distributor cap and #1 spark plug. Turn the engine over until the cam lobes for #1 are both pointing up. Now, check the distributor to be sure it's pointing towards the front and then stick a small wood dowel, drinking straw, or screwdriver into the spark plug hole until it touches the top of the piston. Now rotate the engine back and forth slightly with a 27mm socket and breaker bar and try to get the piston stopped exactly at TDC. It will dwell for a moment right at the top, so you want to find the spot that has a bit of delay each direction before it starts dropping. The dowel/straw, etc. will help you feel the spot. When you get there, mark the crank damper with a white or yellow paint pen right at the "0" mark on the pointer. Like I stated above, also mark the damper such that you can see if it has moved again. I simply extend the "0" mark forward and down. I put a dot on each of the pulley's "V" peaks and draw a line down the front face to the center of the bolt head.