The POS 408 progress pics....

Yes sir. It's the annular booster version.
I tested this carb on a friend's 406 and it worked a lot better than his drop leg holley with very little tweaking. The part throttle seemed to be stronger and more responsive which is exactly what I was hoping for.




IIRC I think it cost me about 630-670 bucks...something like that.
I forget. But it's a nice carb for the money regardless of what some people say. It works well and there were no shavings or problems with it like some like to repeat over and over. I guess they had some problems a while back, but this is no longer the case.

I have the same one on my 410. It also has the V Floats, Jet Extensions, bottom feeder needle and seats and Non Stick Cometic Gaskets. FWIW it did run lean on Brian's Dyno and there wasn't enough time to mess with it that day cause we ran out of daylight. I have rejetted the carb since and it runs really nice and crisp with absolutely no lag when you stomp on it!