318 head porting for the average joe

Thanks for the update
I'm going to try those heads with a slightly larger intake and 30 degree seat and see if I can get rid of that step just outside the current valve
I''ll cut the bottom steps, like 3 on the serdi and blend the bottom
whatta you think
Easier than hand shaping the entire thing.
Cut the seats, stones are great but the cutter is so consistent and clean. The bowl size needs maxed.