The plug gap is 35 and the dwell setting is between 28-32, I like to set them at 30.
There is no dwell setting unless you have points. You should have an HEI distributor.
Point gap is 19 The dwell is 28 to 32
.020 If you have a dwell meter it is 30 degrees of dwell.
30 degrees
Dwell is the angle at which the spark occurs in the cylinder before the piston reaches top dead center.
I'm pretty sure that all General Motors V8 engines use the same dwell setting. Most likely you have a distributor with the little pull up door and points with the Allen screw adjuster. The setting is 28 - 32 degrees dwell so just set it as close to 30 degrees dwell as you can.
30 degrees
the dwell specs are 28 to 32 degrees, I always just set the dwell at 30 degrees.
26-30 degree dwell or adjust points to .017 with a feeler gauge.
30 degrees dwell
30 degrees