SM Head Modifications on a budget

I know mean416 is working on a build that will be using RPM’s instead of SM’s.

As far the the in & ex port openings go, the SM’s have less obstructions.

Imo, it’s probably worth the time to remove the ridges/edges on the RPM heads where the cnc’d port openings meet the as cast runner.
I’ve also seen some RPM’s that had that edge be pretty pronounced at the PRP in some ports.

I like to get rid of the ridge there and blend it into a radius.