So I'm doing 2 mods to my head on the 200. The 2bbl adapter from Classic Inlines is a great addition. The second is the addition of injector bungs. Due to the location of the 2bbl carb adapter, injectors straight into the port isn't a possibility. Turns out the side of the log is milled pretty flat from the factory on my 1980 head. I'll drill 6 holes (3/4" in diameter) and then spot face with a 1" circle. That will sit the injector pretty much inline from the intake port. The major advantage to this is before I weld in the bungs, I can do some port cleanup through the 3/4" hole. Hopefully this will work.