How can i make 700 horse from a 410 stroker

pittsburghracer said
I wouldn’t sell a set right now. The set on my car that I did for a friend 12 years ago maxed out at 318 cfm with the intake on. It needed the intake to control (slow down) the air. In the last year I’ve found and fixed that problem and these heads that I’m slowly doing now flow right at 330. Every bit of that pickup is 3/4-1 inch from the valve.

There lies te problem, for the rest of us the heads are unavailible. I have neither a flowbench nor time to figure out those ports. A w2 or 5 takes much less porting to achieve those levels and its obvious where to remove material. Again, not knocking your work, its remarkable.