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
Are you really going to cut the seat and valve to 30 degrees or did you mean the top cut was going to be 30 degrees on the seat.