Speedmaster Small block porting tips and results Part 1

One more thing and then i'm going to shut up.
For most people, messing with the ssr will only get you into trouble. Clean casting flaws, and live with what you have.
There is a million reason why and i will give you just one.

You can see the ssr from the valve side.......
You can see it also from the port side......... But the "Taint" you can not.
Taint? the part that you can not see with your eye or see the bur with you eyes and have to feel your your way around to get it consistent, let alone the right shape.
You had better be vary comfortable with your grinder making smooth shapes in the port before you ever attempt to shape the ssr.