Here is a page with the finring orders for most GM engines in your year. Yours "should" be the 4.3L firing order is 1-6-5-4-3-2 Distributor rotation: clockwise
There is a picture here:
http://www.autozone.com/autozone/repairguides/GM-Blazer-Jimmy-Typhoon-Bravada-1983-1993-Repair-Guide/FIRING-ORDERS/FIRING-ORDERS/_/P-0900c1528003d4c6
Hope this helps... Dale
Posted on Apr 21, 2011
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