5 Angle Radius Valve Job Plus Pocket Porting - 

Pocket Porting is something we created to increase flow and velocity by focusing on 75% of the gains available while having a great price point.

Includes high performance 5 angle radius valve job (for the best valve seat flow available.) Valve to seat concentricity of less than .001". (Comes with spec sheet.)  THIS IS OUR BEST BANG FOR THE BUCK!