Race City Race Parts AirFlo Cylinder Heads have won a lot of races.
The valve seats have been cut using a Newen Fixed-Turning Valve Seat Machine. (The same machine that top NASCAR and NHRA teams use.) With the valve seats cut with the Newen Machine you get a lot better valve seal.
Are a NKA head pockets that have been dropped.
A video of the seats being cut can be seen at https://www.facebook.com/121753991197977/videos/1560395474000481/
The head comes with good YF valves, Legal Race City Springs, Valve seals and Retainers, 2 rocker pivot bolts, and a push rod guide.
The installed height has been checked and set.
Cut and Decked and ready to bolt on.
What we have done to the seats has greatly improved the airflow.