I was thinking about trying some porting. I've got a 5000-30000 rpm dremel tool but which tip should I get? Does porting the heads even really help much? How about the intake? Do the heads need to be off the block to port? Im guessing yes because of the shavings. Also does anyone know of a good aluminum polish for my intake and valve covers? What kind of brush should I use to polish them? Thanks for the help guys.
