Need firing order and distributor order for 1995 chevy astro van 4.3 liter vortec

Here is the firing order diagram for that engine and vehicle.

THE FIRING ORDER IS AS FOLLOWS : 1-6-5-4-3-2.
CYLINDER NUMBERS (front-to-rear) :
LEFT (driver side) 1-3-5
RIGHT (passenger side) 2-4-6

To set ignition timing, ensure that engine is at operating temperature, (190 degrees or above), bypass EST (electronic spark timing) by unplugging the single tan wire with a black stripe from the distributor. Ignition timing should be set at 0 degrees or TDC (top dead center). If not, loosen distributor hold down bolt and adjust, then retighten.

2000 Chevrolet Astro Van 2WD
4.3 liter V-6

1-6-5-4-3-2

Firing order on a six cylinder:

1-6-5-4-3-2

Hope it helps

Mike