I’m putting a 12 valve back together and while I’m waiting on new seals and rings to arrive I figure I’ll flip the head over and very lightly machine some of those sharp edges down and just smooth out the ports a bit.. not porting really cause I’m hardly removing anything.. just cleaning up. Was this a really bad idea? I can post a picture.. just concerned If I shouldn’t have.

 

 

hi
looks good , i did same to my new head.

 

thanks for the reply!