Turn it to the opposite direction that the rotor rotates.
To advance ignition timing, loosen the distributor clamp and in very small increments turn the distributor body in the OPPOSITE direction of the rotor's normal rotation. If you don't know which way the rotor turns, you can find out easily by removing the distributor cap and having a helper turn the engine over with the ignition key switch. To advance the timing turn the distributor counter clockwise.
To advance the timing on a 396 Chevy, you should turn the distributor counterclockwise. This adjustment will cause the ignition timing to occur earlier in the engine cycle, which can improve performance. Always ensure that you check timing specifications and use a timing light for accurate adjustments.
Rtr. turning clockwise. Rotate distributor counter clockwise to advance timing, clockwise to retard.
turn the distributor.
Turn it to the left which will be counterclockwise.
counter clockwise
counter clockwise
Counter clockwise to advance.......clockwise to retard
To advance the timing on a distributor, you typically turn it counterclockwise. This adjustment moves the ignition timing earlier in relation to the engine's position. Conversely, turning it clockwise will retard the timing. Always refer to your specific vehicle's service manual for precise instructions.
To advance, rotate the distributor counter-clockwise. To retard, roatate it clockwise).
counter clockwise.