[AnotherToothpick]

Where would I find the PCV tubes in a 4.9 engine (taking into account that I still have very limited knowledge of where everything is and what it's called)?

Also, does this process more or less have the same effect as adding carb cleaner to the TB tubes? I poured half a can of CC into the TB tubes while rodding them out, then let it sit in the engine overnight before starting it the next day and burning it all off... Unfortunately this did not solve my rough idle (800-1000rpm) or my sporadic knocking. Though I gather the rough idle could simply be the result of me needing a new O-ring throttle body gasket.