27-33
shoot for 30-31.
If it's a M43 engine it has a chain.
Dwell=30. Timing +6
A dwell/ tachometer, and a timing light.
timing: 5 degrees btdc. electronic ignition sets dwell automatically. timing: 5 degrees btdc. electronic ignition sets dwell automatically.
28 to 32 for the dwell and for the timing, TDC if it is standard transmission, 4 degrees BTDC if it is automatic transmission.
30 degrees dwell timing 8 to 10 at 650 rpm vacuum advance blocked off
Use Chiltons repair manual for the model year. Then you will find the engine specs. The points gap at 0.019 and the dwell will set at 30 The timing should set between 8 to 10 degrees before top dead center. Remember that changing the timing will change the dwell. Timing changes the dwell. but the dwell don't change the timing. So set the timing first.
Valve timing is not adjustable on a stock engine. The timing chain is either installer correctly or not.
That is the timing chain cover.
1/4 MAX
30 degrees and 8 before tdc
It is set to zero degrees with a scan tool. It can not be done with a timing light.