Missfire on 2/4/6 1999 3.4 v6 venture 2/4/6 black 1/3/5 look new

Question

I just replaced the head gaskets and intake gaskets also plugs and wires now the van has no power ive went through all the emissions egr/map sensors all the vacume lines I cant find any leaks. I took out the plugs to make sure they were gaped at 60 they were the plugs 1/3/5 looked new when i took them out and the plugs 2/4/6 looked like they were black or fowled ? Ive read the symptoms of a bad coil pack and it describes the symptoms exactly but in another article it says the same thing about the map sensor . Any help would be greatly appreciated

Answer 1

The MAP sensor would not give fowled  plug to one side of the engine. Coil pack you would have a misfire , On the valve lash , this is hydraulic lifter and with adjuster and do not require adjustment , This is the area that would cause one side,