David Dalke does great work on head porting, I would email him for pricing and options.
As for a cost expect to spend ~$1200 or more, this is just an off the wall number.
ouchhhh 1200 for just porting? or does that include valves and springs? I paid 350 for my port work done by Tflow. specializes in buick v6's but does ford v6's also. I don't have pics, because I'm still saving up for larger valves so they're kinda just sitting around at his shop, but from what I've seen thus far, they look just like anything morana or ssm has produced.
get a hold of victor at spinning wheels -sc.. his prices are the best i found.. my heads are on there way to me..tell him ironworker sent u too him he will give u the best price