0.035
The proper spark plug gap for a 1980 Chevy 350 Pickup is .045, according to spark plug manufacturer (Autolite, Bosch, NGK) specs.
.045
.060
.035
.035
The proper plug gap is .035" or thirty five thousandths.
.35
It is .045
.035
.032
.035
The Spark Plug Gap.035 (In thousandths of an inch)