Stuck within a restraint, stock port layout. At a certain point it will only flow more by simply increasing port volume... then It's just an elbow ...at a certain point, shape not ideal, it still picks up by volume
You nailed that. I know for a fact an Edelbrock can flow 318 cfm without moving the pushrod but I flow EVERY port on EVERY head to get there. And usually several times. With the offset rockers Harlan Sharp made me I'm not seeing what I hoped to see but in all honesty I didn't have much time to try things. I will hopefully this Winter