Who's doing your head work ?I am going to run BimmerBrakes New Equal Length Headers. I personally couldn't justify all the work involved just to gain the possibility of a few HP. But then again, if you really are pulling the head for porting, what the heck.
Not going to do anything to the motor until the summer or so. During that time, I will install Raceware HeadStud, Port and Polish, 3 Angle Valve Job the head.