I beleive the factory spec is 4-6 degrees retarded.
12B
8 to 10 degreds btdc
www.motorcraft.com shows the ignition timing for a 1979 F150 with the 460 cubic inch ( 7.5 liter ) V8 , automatic transmission , as 14 degrees BTDC
The timing for a 460 Ford engine is 14 degrees before top dead center. The engine should idle at about 600 rpm.
turn it to the right.
Gose counterclockwise on 302-360-390 and 460.
10 degrees BTDC ( unless engine compartment decal shows different ) for the 7.5 liter ( 460 cubic inch ) V8 engine in a 1989 Ford truck
According to my Chilton's Auto Repair Manual : For a ( 1970 ) Lincoln Continental , 460 cubic inch V8 engine The ignition timing is set at ( 10 * Before Top Dead Center )
8 btdc @ 800 rpm
12 degrees BTDC.
The timing degree for a 1994 460 cubic inch (7.5L) Ford motor typically refers to the ignition timing setting, which is generally recommended to be around 10 to 14 degrees before top dead center (BTDC) at idle for optimal performance. However, this can vary based on modifications, fuel type, and specific application. Always refer to the vehicle's service manual for the most accurate specifications.
It depends on the year, which engine code it is, what emission equipment is installed etc. Check the underhood specifications sticker - hopefully it is still there and readable. It should be in front of the radiator somewhere.