In one of my rabbit hole Youtube nights, consensus from the 6 cyl experts pointed towards doing it running, this is my first go around with a six, thought I would set them cold at first and see how it went.
Really didn't feel like making a mess lol, my sprint car i do the, intake closes do the exhaust, exhaust opens do intake....or the ICEO method, thanks, few days until the next storm here, so on the road she goes.