SM Head Modifications on a budget
I don’t have time to get into that other question now but man you gotta get rid of those one inch sanding rolls. My biggest porting tool I have is 1/2 inch and that for rough in work. I rarely use a sanding roll except maybe short side finish work, exhaust, and chamber. (3/8 roll) You can get your proper shapes and tighter corners to get the area you need everywhere on these heads.
I don’t have time to get into that other question now but man you gotta get rid of those one inch sanding rolls. My biggest porting tool I have is 1/2 inch and that for rough in work. I rarely use a sanding roll except maybe short side finish work, exhaust, and chamber. (3/8 roll) You can get your proper shapes and tighter corners to get the area you need everywhere on these heads.