PORTING: Improving Low Lift Flow

I started on the combustion chambers, relieving the area around the valves to improve low lift flow. I will also polish these chambers. I tried out some of those Scotchbrite balls, they seem to work pretty well at starting the polishing process.
I purchased the Scotchbrite buffing/polishing balls at amazon. along with some new polishing rolls. You can follow the links pasted below to check them out.
Scotchbrite balls
amzn.to/3KA3shq
Wool/felt polishing heads
amzn.to/4c91jFh
Polishing compound kit
amzn.to/3yN5J6p
IF you purchase any of these items through the links above I would receive a commission.