You need 4 things to have a running car/motor compression fuel spark and timing ignition and cam pull all 4 plugs install them into the coli ground the tips check for spark then check for fuel preassure and then check for injector signal get a noid light make sure the timing belt good and did not break or jump timing did you diasconect any thing

Also you mention an high idle in the valve cover there is a vacuum regulator for PCV the go bad and cause problems big vacuum leak