welcome to the site! I agree with Achip, make sure you are getting voltage to the points. Sounds like no spark, if points are good, and getting voltage there, coil wire could be bad. Both my 55 and 58 had bad coil wires! They were corroded internally right above the coil.

Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof