Operation CHARM: Car repair manuals for everyone.

Ignition Timing

Manual Transmission 15 +/- 2 Degrees Before Top Dead Center (deg BTDC)
at 800 +/- 50 rpm in Neutral.
Automatic Transmission 15 +/- 2 Degrees Before Top Dead Center (deg BTDC)
at 780 +/- 50 rpm in Neutral or Park.