Chuck, you can but I don't like that method. With only 4 screws around the perimeter you have to crank down pretty much to squeeze the area between those screws (if your air horn and possibly float bowl are warped). As you can appreciate, this makes the already existing problem worse. Also you have the question of the internal mast (holding the jet and power valve). It is designed to sit atop 1 gasket thickness. Add two and you must remember to cut one or the mast will sit crooked...and this will cause your power valve to not work correctly. It will be out of line. Jon (CarbKing) and I have talked about this and about a year and a half ago agreed it might be possible to create an air horn to float bowl gasket from silicone or some other plastic compound which would give and expand as needed to fill the warped gaps but neither of us has done anything about it. Also, please take a look at what I found in one of the Rochester B models I took apart. This "rebuilder" had made the whole she-bang worse when one of the two gaskets shrunk and opened up a brand new vacuum port and fuel slosher...
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
