what should i use to port my intake manafold? dremmel? drill? air die grinder? and what should i use to pollish my ports?

 

Most pro porting shops use air die grinders with carbide burs or cutters for the big reshaping.

Use sand rolls or "tootsie" rolls to clean up after porting, .. intakes like it kinda rough, like 60 or 80 grit, ..
ex ports like a smoother finish, .. 120 grit.

Make sure if you're going to do any reshaping that the mods have been proven on a flow bench, .. it's real easy to make things worse.

Curtis
Racing Flow Development
curtis@cboggs.com