Aluminum intake after the final cut for porting 

This is the aluminum intake you see me working on in several of the other porting and polishing videos. This is what the intake runners look like after I cut out the 3 mm overlap or "half moon" area you see at the bottom of the intake port opening on the other videos. This increase in cross sectional area can make a significant improvement in overall flow rate ( CFM ) and potential volume of flow. Please see the other videos on this channel to get the full picture of what was accomplished here. Porting tools used from CC Specialty Tools.