Pick a reputable shop, either way.
There are many good shops to choose from, but these guys are the perennial favorites here in Moparts-land.
Hand Porting:
Brian @ IMM
ou812/IMM Dwayne Porter @ Porter Racing Heads
fast68plymouthRyan @ ShadyDell
RyanJ CNC:
Jeff @ Modern Cylinder Head.
Modern Cylinder Stay away from the backyard know it all types. A big mouth and a set of carbides can do a lot of damage!
Do you really want to be a guinea pig for some hack?
Go with the guys who have ported many sets of that that head type and have good routines and a proven history of great performance.
