You don't want to port and polish a intake manifold.
No! The only thing that gets ported or polished is the ports on the cylinder head itself not the intake manifold....you still do port it though if you running a bigger TB
^^^^Awesome advice:thumbup:
This is what you do. You take off your air filter, and the you put a 25 lb. bag of sand into the intake tube, and then you turn on the car, and let it suck in the sand. That will port it out real good. Call me to tell me the result.
No! The only thing that gets ported or polished is the ports on the cylinder head itself not the intake manifold.