18436572-#1 is the front plug on the drivers side--bring the #1 piston to TDC on the compression stroke & put #1 plug wire on that position on the distributor cap & continue with the firing order. 18436572 usually the no 1 post on the distributer points towards the no#1 cylinder the cylinders are numbered like this front to back on the drivers side 1 3 5 7 and fron to back on the passenger side 2 4 6 8 that is if you are standing in font of the vehichle facing it do this in a clock wise direction around the distributor.
Distributor rotates clockwise.
Here is a link to Auto zone. Hope this helps you.
Firing Order: 165432 Distributor rotation: Clockwise 1993 Chevy 4.3L V6 Firing order
firing order pick up s10 2001
The firing order goes as follows 1 6 5 4 3 2