302 head progress and questions

This isn’t a comment on the porting efforts, but more of an observation about what you were starting with.

With no bowl blending or deshrouding in the chamber of any kind, I’d say the install of the 1.88 intake valve could easily have been a step backwards.

View attachment 1715892780

I agree. I wish I had been able to shave the chamber side down before the bigger valves were put in but I got them used. And the valves are now so close it was very difficult to do anything without touching the seat. So I ended up focusing on the bowls. That pic is what little I did on the chamber side but before touching the bowls.