Promax 6-pack End Carb Plates Sealing?

[PurpleBeeper]

I’m finally getting my engine to the tuning phase. 440 six pack, mild cam, Promax outer carb plates. The engine runs great on the middle carb and idles well at 800rpm. However, when I open up the secondaries I’m putting out a lot of black smoke. I’ve got the jets & idle air restrictions set at stock 1970 settings settings. Im wondering if my outer Promax plates aren’t sealing (don’t have the separator plates/extra gasket…just the Promax plates).
1. Is the only reason to leave out the separator (thin) plates because of end carb float bowl clearance? Or other reason?
2. Has anyone figured out how to clearance the end plates/floats to clear?
3. Has anyone tried filling the void behind the plates with epoxy? Comments?
THANKS!

 

[Bird 426]

There is a float available that has a recess in it, to clear the Holley main jets. No, I don't think that you can use that steel plate that the stock metering plate uses.
The Promax plates seal against the bowl gasket. Do you also have the Promax base plates? Did you deal with the interference problem they have with the main body? Main jet size, diaphragm spring color, power valve, manifold vacuum ? Are you winging it in the driveway, or driving it? Is there a bog?
Fuel bowl levels. Finally, degree thermostat.
There is a guy close to you from Crete, in the Chicago land area, 440 Beep. He's pretty good at this too. He has a '69 Bee, stroker Sixpack. Look down in the A12 site.