New Trans Am lover.
It's not how you stand by your car, it's how you race your car.
Write that down.
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You've actually asked a rather involved question.
Because these are 4 cycle engines, they only fire every other time the piston comes to TDC (Top Dead Center). That means there are 720 degrees of rotation for one cycle. That cam will hold in the intake valve open for 235 of the 720 degrees of rotation.
www.howstuffworks.com
hope that helps.



you wont miss my car , . . . .