take the dizzy cap off and on the distributor itself you will see a mark on the lip of the actuall distributor where the cap would sit,hard to explain without a pic so hopefully you will see it and know what i mean,that mark is for lead number 1 so when you put the cap back on number 1 will line up with that,the firing order is 1-3-4-2 and as you look at the dizzy cap it will rotate anti-clockwise,hope that helps