I've been searching the internet and cant find any really good information on the subject.. most of my car experience is from mustang performance, so i don't really know much about common Chevy problems..

I was driving down the highway going 65-70 when all of a sudden the blazer starts shaking (like its missing) and losing power.. so i put it in neutral and it basically smooths out.. I merge over to the right and off a exit ramp into a pilot station.. I start it back up and start pulling plug wires.. the first 2 on the passenger side that i pulled made the expected snapping noise when i unplugged them.. the when i unplugged the third one (cylinder 2): no snapping noise, but the engine smoothed out (almost as if it was running perfectly)..

i figured it was either a plug or a plug wire.. so this morning i put all new plugs and all new plug wires in it.. after a hour of so long endeavor replacing these, cussing at engineers and such.. i finally get them all back together and its still chugging.. only now when i unplug cylinder 2 it makes a snapping noise and the engine still runs poorly... however NOW i can unplug cylinder 1 and the engine smooths out..

so i do a little test.. i pull the wire to cylinder 1 and i plug one of my old plugs into it and start the engine.. it will run fine when that cylinder 1 wire doesn't have a load, but as soon as i ground the plug (creating a spark) the engine starts acting like its missing..

MY thought is that i have a weak coil or something wrong with the distributor points/rotor.. i only think that because its seemingly acting like running 5 plugs is fine, but 6 plugs is to much of a load..

i would like to know what you guys think..

Thank you very much in advance
-Josh