The burr finish is a couple of hours. That is my intake that I’m sticking on a buddy’s 340. Woth welding and porting Im close to 30ish hours in that manifold.
Edit: I just remembered that burr finish was almost 4 hours. I forgot what time I came in last night from the shop. So a bit more time than I thought.
When I’m working for free I try to not keep track of the hours!!!