What is the firing order on a 2000 4.3 Chevy Astro Van?

The firing order is: 1-6-5-4-3-2 CW The cylinder location: 1-3-5 front to rear drivers side 2-4-6 front to rear passenger side Cap terminal location is a bit odd. drivers side front to rear is 3-1-5 passenger side front to rear 2-4-6 with the coil in rear passenger side