From that, Todd picked four areas that we would work on before Daytona. All of these steps were specialized changes to the Henning Honda above and beyond the basic blueprinting which gets done to every motor that comes into Augustine's shop. Everything is measured with precision instruments.
Nothing is left to chance.
Porting Intake ports on a 500T head. The one on the right is ported, the other has a custom valve guide installed, but no porting done yet. The second step is a fairly typical porting job. This allows greater flow of uncombusted mixture into the chamber, and greater flow of combusted gases to the exhausts. Many areas need to be filled rather than extruded.