Hook up a dwell meter and turn the 1/8" hex screw on the point set to achieve 30 degrees dwell. (Engine running)
a 1973 Chevy truck has HEI Answer And if it does have points, say not the original engine, its .018-.019 will do.
Mine had a 350 turbo in it.
195 degree.
fuel presurre
73 Chevy 350 firing order: 18436572 countercockwise
0.019in
long
5 QTS.
Probably a turbo 350.
350 CU. IN.
Rochester Quadrajet
inside the distributor.