Pretty much sums it up. I dunno how much K series work he has done but Combustion Contraption has extremely fair rates and his work, Ive heard, is not too shabby. www.cccylinderheads.com.This thread is going open up a can of worms.
Tom @ Portflow
Brad @ RLZ
Dave @ Headgames
Larry @ Endyn
And probably some others that I am forgetting.
Are all good.
Talk to them, ask questions, and make a decision based on how happy you are with the answers.
I personally chose Tom. His turnaround time is probablly the fastest out of all of them, he took his time and explained everything to me clearly. His rates are fair. He makes retainers for the Eibach valve springs. And being the porter in for record cars (Doug and Jeremy) does show that he knows what he is doing.