I need bigger valves for my new head. I need 1mm bigger on intake and 2mm on exhaust. Where can i get these puppies? noone seems to have any valves, springs and cams are everywhere, but i cant seem to find larger valves. Any help would be appriciated.

 

ferrera do a yahoo search for the name they make quailty stainless steel valves with pro flow design to let more air flow through our combustion chamber though the head.