yes and no. I dont have my flow numbers so i'm not sure, but i only remember 250 max flow. I did have Dwayne Velder fully port them on my last effort and had these on the engine that blew up on the dyno with the cam you listed. They were slightly damaged. so i had them repaired and sold them and the rest of my small block stuff at that time. I moved on to big blocks after that. If that engine would have survived it would have been a little bad ass. It was 13.5:1 compression and i had a Holley t ram for it too. I'll see if i can find my old flow numbers.