Highest flowing sbm heads?

Have those motors been to the drag strip yet?

the motor the local shop to me built( the 376) hasn’t. He had it for sale, still might.
But he told me plans to put it in his 66 belevedere wagon and race it next year.
car current has a stock stroke 360 in it that runs 10.70’s at 3500 pounds. Have raced with him, he is a very good driver for not getting out much.
Motor Brett built, I have no idea