70 dart swinger slant turbo build and mild restoration

I was looking at the manifold and wondered why don't I just polish it I have all the materials to do it and have done others before and used to do polishing for a living so I'm going to try to polish it and shave off all the excess stuff like the heat riser and casting marks and polish it out don't think there's an advantage but I have the time and why not? I have the whole setup from when I used to build bikes and have all the polishing stuff so here we go.