I dont want to port it, i just want to polish the inside a bit. Is this a bad idea or a good idea?
haha i totally misread that. i didn't even see where he said "inside" haha.flynhighaf23 said:if you polish the exhaust mani, it will improve the flow of the exhaust gases. you always want the exhaust ports on the head smooth as possible along with the manifold. i hear the extrude hone process is nice cause its like sand-blasting and it smoothes out the rough surfaces...