Originally Posted by PontiacFighter
Ok so the timing mark must be at 12? Or can I start the motor with the mark 0?
What matters is that the ignition is advanced about 12-14 degrees. Most guys find it easier to estimate the timing by using the timing marks/damper line to indicate 12-14 degrees and aligning the rotor directly w/#1 terminal than they do guessing at how much distributor rotation it takes to give you about 12-14 degrees BTDC with the damper line indicating zero (TDC).