Mopster that looks good to me,and numbers are inline with what that much effort should give. the man that ported my edelbrocks didnt have much good to say about the sb edelbrock ports out of the box,the only thing he liked about them was that atleast they where not cast iron. i gues those wings around the valveguide is to keep the airflow away from the exhaustvalve and minimize the amount of fresh fuel/air from taking a shortcut out into the exhuast during overlap?
