The static timing for a 1964 Thunderbird 390 V8 is 6° BTDC. This means that the spark plug should fire 6 degrees before the piston reaches the top of its compression stroke.
Dynamic Timing
Dynamic timing is a more accurate way of setting the ignition timing than static timing. To set the dynamic timing, you will need a timing light.
1. Start the engine and let it warm up to operating temperature.
2. Connect the timing light to the battery and the number one spark plug wire.
3. Aim the timing light at the timing marks on the crankshaft pulley.
4. Adjust the distributor until the timing mark aligns with the pointer on the timing cover.
Idle Speed
The idle speed for a 1964 Thunderbird 390 V8 is 600-650 RPM. To adjust the idle speed, turn the idle speed screw on the carburetor.
