Edelbrock 1406 Not Pulling Fuel into Carb

[1] Remove fuel line at the carb & crank the engine. Make sure fuel comes out of the line. If ok...
[2]. Remove air horn. If using E fuel, is it causing the rubber tipped needles to jam? Check that out.
[3] Remove air horn. Invert air horn. Suck on fuel inlet. You should not be able to suck air. Turn air horn over so that floats hang down. Suck on fuel inlet & you should be able to suck air. If not, needle are jamming in their seats. Could be wrong needles or tight.
[4] Many original Carter AFB/AVS carbs came with n & s kits that contained a small spring; the spring hooked around the neck of the needle & the float tang; when the float dropped, it pulled the needle out of the seat so that fuel could flow.