Looks great. Holley added a ton of new features to this new line of carbs. There are so many new features I'm not going to bother trying to list them all. I like the AN fittings for the bowl and the dual bolt pattern. Adjustable throttle linkage is also cool as is the idle air bypass. Not sure about the bowl drain but I'll try it and see if I like it. The double sight glasses are a nice touch.

I'll get this carb on the dyno in the next few days and see how she compares to a Dominator. My guess is that this one will make pretty good power on my 514 motor. This is the biggest 4150 that I've ever seen. There is almost no venturi shape at all, it is almost a straight shot right down the throttle bores.