i pre drill and even machine the oring land in all my intakes
the flanges are done on a cnc mill then they are welded and we chase the tapped holes after welding
mind you i jig tack all my production manifolds then weld them on a turn table
i still free hand weld prototypes
the flanges are done on a cnc mill then they are welded and we chase the tapped holes after welding
mind you i jig tack all my production manifolds then weld them on a turn table
i still free hand weld prototypes