How many threads have you had shut down because you couldn't understand or believe they could flow more than 200 cfm? Yet here they are over 240..........
Buddy, any known porter here, and even some unknown... can get the number.
I do. Do I want to put LS valves and change the guides for them to run those heads, nope...and I sure as hell wouldn't do it as a free test for you. You can't do it yourself and so you live vicariously through others, what a sad life that must be..unless you're in touch with reality...then you know how unique and one off this kinda **** is...
Respect or gtfo.