I had a head crack, so i replaced it. All new gaskets, rebuilt head, new oil, coolant, etc. It all went back together good. Started it up and it had camshaft position sensor code. Strange because i never disconnected that sensor. I made sure it was plugged in all the way and the wires were ok, and cleared the code. Started it back up and it was gone, but it was still misfiring, almost wants to die at times. I replaced the plugs, thinking that may help....nope. Pulled the plugs back out and checked compression. 120 on all 6... Thank God! Everything is plugged in, i just cant seem to figure it out. Any ideas or secrets? I need all the help i can get, i'm worn out!!!