Point gap is 0.019 Point Dwell is 28--32 ( DEGREES )
plug gap is 0.035
Timing is 4 to 8 degrees BTDC / Before Top Dead Center
-6 degrees BTDC
I have a 1990 and factory setting for base timing is 10 degrees, I believe.
1965 Ford Mustang 170 cid, Spark plug gap, .034. Points gap, .025. Dwell, 37-42. With standard transmission, timing is 6 degrees BTDC. With automatic transmission, timing is 12 degrees BTDC.
10 degrees BTDC
6 degrees BTDC.
10 degrees btdc
timing on my 283 4-barrel is 8 degrees btc.
For plugs i'd try em out with .30 with your points type or .45 if you went to an HEI. Gap for points, leave em be from the day they were new i'd say. The spark plug gap is .035. The point setting is 017 or 30 degrees dwell. The timing with the vacuum advance disconnected is 4 degrees.
I believe it is 10 degrees BTDC
6 degrees before top dead center.
A 1976 Chevy did not have a points ignition, but that has nothing to do with the correct timing. You will find that the engine runs best with about 8-12 degrees BTDC.
5 degrees BTDC. remember to set the idle to 800rpm for automatic transmission and plug the vacuum advance ose before setting the timing.