Only available on Dominators? Really? Then somebody needs to tell me that cause I've been buildin standard Holley bodies with Dominator float bowls for 25 years.
Yeah, that's exactly what I said. Dominator float bowls are only availible on Holley Dominators. You can screw anything you want to anything but they are not availible on anything but a Dominator. I suppose you could buy them seperately but I never checked as I never had the need.
Carburetor badassery has been a hobby of mine pretty much ever since I could hold a screwdriver. See, doin it like this, puts the carburetor AS the fuel exchange point, so cool fuel is IN THE CARB all the time. If the regulator is the exchenge point, as you suggest......and thousands of articles like you posted,the fuel in the carb is never as cool as doin it my way. The dominator bowls are a bolt on mod for these carbs. I got mine on EvilBay for 12.95 ea. This particular carburetor I have moded heavily. It was originally just a little old 3310 750. I installed a rear metering block with jets, Dominator fuel bowls, adjustable secondary diaphragm, 50cc dominator accel pump and cam, electric choke, bigger pump squirters and clear sight plugs. I MIGHT have 100 bucks in what would be a 600 dollar carb new. If yall don't think runnin a return line on a mechanical pump will net any benefits, all I can tell you is, try it. You'll be frikkin sold. Especially routing the return with the dominator float bowls as I have outlined. This puts the carb in the CENTER of the fuel system instead of at one end. Constantly receiving cool fuel IN THE BOWLS is what this accomplishes. Again, yall can go read all the hot rod magazine articles you want to. I've been DOIN this for a long time and It WORKS. You'll NEVER have trouble with boiling fuel or vapor lock and the fuel system will work better than it was designed. ....just so you know, I was doin this before Barry Grant ever produced a carburetor.