Check your spark plug wiring. Number 1 is above the alternator. 1, 3, and 5 are trunk side cylinders. 2, is front passenger side near the battery, 4 is front center and 6 is front driver's side.
Firing order is consecutive, 1-6. Determine where you want the number 1 plug to attach to the distributor cap and mark the base of the distributor. Once you have determined that the number 1 cylinder is on the compression stroke, and the timing mark is aligned, rotate the distributor so the rotor button is pointing at the mark you made.
Then connect your plug wires in a clockwise direction in numeric order. starting with number 1 being located to align with your mark. This should put you at static timing.
With ignition off, jumper terminals A & B in your ALDL, then start the engine and rotate the distributor to set timing with a strobe light to 10-12 degrees. Turn off ignition and remove the jumper and lock down the distributor.
[This message has been edited by fierofool (edited 01-31-2025).]