Man I would start from zero and forget everything up to this point. Pretend it’s a new to you engine. I would yank the distributor and plugs/wires. Set the crank at 15 degrees BEFORE TDC on compression number 1 on the timing mark. Drop the distributor back in with the rotor pointing at the number 1 terminal and put the plug wires on one at a time in the correct firing order. Some times (myself included) we look at something so long and fiddle with it for so long getting frustrated that you start to assume your checks and rechecks are correct and can easily overlook something simple.
