Pull the valve cover and watch the valves for #6 cylinder as you rotate the crankshaft. When the last one in line (exhaust) opens and almost closes, you'll see the second valve from the rear (intake) begin to open. Now check to be sure the distributor rotor is pointed at #1. The ball and pointer align twice, once for #1 compression, and again when #6 is on the compression stroke. The only way to be sure you're in time on the correct cylinder is to watch the valve action.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!