1995 GMC Sierra "350 95 engine rotation" Questions

...350 engine, the firing order is 1-8-4-3-6-5-7-2. GM engines have the firing order cast onto the front of the intake manifold. 1988-95 4.3L Engines Firing Order: 1-6-5-4-3-2 Distributor Rotation: ...

...95 4x4 4dr 4.3w vin blazer with intermittent starting issues. I've replaced fuel pump,filter,all spider parts, cam and crank sensors spark plugs and wires dist cap and rotor, alternator, battery and ...