0.060
.035"
The proper spark plug gap for a 1980 Chevy 350 Pickup is .045, according to spark plug manufacturer (Autolite, Bosch, NGK) specs.
.035
.045
.045
Your local libarary in a motors manual or Clinton motors
The proper plug gap is .035" or thirty five thousandths.
.035
.035
.060
.035