My First Shot at Porting Heads

Enjoying the black snot , are we ? LOL
The first heads I did was before anyone thought to wear a particle mask , but even with them , that pesky grinding dust gets everywhere.
Nice job so far. You should see a decent gain from this.
The first set I did was 429 Ford DOVE castings , opened to CJ size at the intake manifold. With home porting and a bigger intake valve , I saw .15 improvement on the 60' and close to a second in the 1/8th mile.
This was pre-internet by a lot of years , so I had no one to ask.
I just looked at it and asked myself " If I were molecules of fuel and air , where would I want to go.
I thought it worked out O.K.
I might look for a set of MP porting templates with your project and use them as a guideline.