Excuse my ignorance but what is a radius on the valve job consist of? Is that the farthest exterior cut that seems to go on the outer edge of the seat and I assume goes around the outside of the valve head itself
Airflow likes sharp angles on the intake side of approximately 15 degrees. Example 70-60-45-30-15 not shaped rounded like let’s say an orange. On a radius cut the 45 degree seat cut is the only one with a sharp angle and it’s even hard to see.
