In automotive applications, it is the number of degrees of the crankshaft before the top or bottom center, at which the intake or exhaust valves open or close.
45 degrees After Top Dead Center.... used in terms for motor cylinder timing...ports (exhaust,transfer,etc)
It varies from 4 degrees to 8 degrees before top dead center. I always set them at 8 degrees before top dead center regardless of which 350 it is from that era with the exception of the LT-1.
The duration of The Center of the World is 1.47 hours.
The duration of Cool Center is 3600.0 seconds.
The duration of Business Center is 2 hours.
45 degrees After Top Dead Center.... used in terms for motor cylinder timing...ports (exhaust,transfer,etc)
16 degrees before top dead center
The duration of Weather Center Live is 4 hours.
The duration of Nazis at the Center of the Earth is 1.5 hours.
The duration of Journey to the Center of Time is 1.37 hours.
The duration of Front Row Center is 1800.0 seconds.