Anyone used this carb before?

YES! Like the Autolite carb, LOL! Totalllly forgot about them. (DUH!)

The carb worked well. I'm not trashing it by anymeans. If your looking to save some bucks and get out on the road, why not. If your looking for max HP, ....this may not be the carb for you.

Yes, all Holley parts will work on it. The one thing I crossed when I was screwing around with it was the rear boosters (Or front for that matter) were not available for replacement. I took a dremal to the rear boster to whittle it down and got carried away, screwing it up.

The fuel is designed to be discharged around the inside permimiter of the booster, not just a single spill port in the center. (At least it was on the Holley)

It is a 2 part design is like the AFB. No fuel spills, jets in the floor. Grab a towel and flip the top of the carb over onto it and you'll be spill free. Stain free. The top does drip alot when you first take it off since the floats are attached to the top and of course ..in the fuel.