Don’t ask me how many flow tests I did to get there but I did these heads for a friend. He decided to sell them so I paid to much for them but there was no way in heck I was going to let them disappear. They ended up going 9.70’s on my 408 on a worn out .030 over bore at 2860 pounds in my car and 10.12 in my sons car at 3200 pounds. Now on a stock crank 360 he has gone several 6.54@3200 pounds with a small 610 roller cam. Junk open chamber 340 style Edelbrocks. Lol.
