these are of a 26 head i had done for a monster rb26/30 33gtr i'm building for a friend. all the headwork was done by will @ jhh in brisbane. basics are 1mm os valves both sides & what he classify's as a 'race master spec port, polish & chamber work'. all port/chamber/valve seat work came to $1500.
I must say though, you shouldnt base the real world performance of a head on what it flows on a static bench, you should only use a flow bench as an indicator only.