350 engine will not fire on all 8 cylinders when starting

I would start by checking the condition of your plugs, wires, and cap and replace whatever seems questionable. A hairline crack in the dist. Cap can allow moisture to get in and cause the type of problem you are having. Hope this helps.

Thanks ill try that.

I replaced the distributor cap and rotor and the plug wires today. I will do the plugs tomorrow, but it seems to be running better already. Maybe its wishful thinking. Lol. Ill let you know how it pans out tomorrow. The distributor cap was in bad shape and the one plug I took out was almost comletely rusted on the shaft and the guy at the parts place said it was long past needing replacement.

Distributor cap, rotor, plugs, and plug wires. That should do it. Check your plugs too to make sure that oil isn't dripping on the plugs

Ok. Replaced everything and it solved the problem. I adjustedd the air and fuel mixture screws to lean out the flow. And adjusted the idle. I was idling above 2k now it idles around 1.K. S that good or does anone have suggestion on how to set it right to get the best gas milage.