What is the firing order for a 1990 Chevy S-10 v6?

The firing order depends on which V6 engine you have. 2.8L engine the firing order is: 1-2-3-4-5-6 . The distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . The distributor rotates clockwise.