30 degrees dwell
.035"
0.045
0.35
There are no points it has electronic ignition.
25-.30
A 1995 Chevy Van with a 454 engine will have a spark plug gap of .060 inches. A difference of .005 (give or take) should not affect the engine's starting capabilities, however.
The spark plug gap on 1977 Chevy truck 454 should be set at .045 inches. Spark plugs are preset at the factory and should need no adjustments prior to being installed.
0.019in
0.035"
A person must leave the right size gap for the spark plugs when changing them. The 1999 Chevy Suburban has a spark plug gap of .060 inches.
i think .35 or it will be under hood on sticker emissions