Hey, was wondering if anybdy has done this. I have two ls heads, one of which is going back on my teg to get my car back and running while I save this summer for my b16a build. I want to just open the ports up a little bit and maybe just get some of the casting imperfections off of the surface. ANyone done this? Or any recommendations? I heard that if you polish the intake ports, that fuel condenses on the side, so I am wondering if that is true, if there is anyone that has any suggestions. I am also goingto do the Intake mani just for fun. Thanks in advance. Oh yeah, don't give me any garbage about how DIY is a stupid idea. I have two heads, so if I screw up on one, I am just gonna throw it away and use the other one. Darn cheap heads.