[68gmsee]

Forgot to mention.... Once you start feeling compression with your finger, insert a thin wooden, plastic dowel or something similar and slowly continue moving the engine by hand until you feel the piston is at exact top of cylinder. You should be able to see it on your six also.

Couple of other tricks I use. On a manual transmission, once the piston is close to the top and you have trouble turning the engine, you can place the transmission in second or third gear and slowly push on the vehicle. It will move the engine.

Once you get to TDC and the rotor pointing to #1 plug cable, leave the spark plug out or insert a spare in the cable. Turn the key to "on" then hold the spark plug to engine ground and rotate the distributor by hand back and forth. You should see a spark at the spark plug. If you don't, recheck the distributor points if you have them to make sure they're adjusted properly and all connections inside are tight. Also, check for burn marks on the rotor.