Relocating the UIAB, are size adjustments required?

[Cadman-iac]

  Just a quick question, i just relocated the upper idle air bleeds on my carburetor, but I was wondering, because of the new location and the different route that the air takes to get to the original bleed location, do you need to resize for any reason?

 The air now runs through the air horn to the gasket where it needs to do a small zigzag in order to continue on down to the channel restriction, whereas before the air entered just above the restriction.
 However, because of the new location (on the top of the horn basically), there should be less of a flow hindrance as the air is coming at it straight-on, a sort of ram effect so to speak. The original bleed location being next to the venturi and aiming slightly downward, does not get any "ram effect".
 So do the two issues cancel each other out and there's nothing to worry about, or are these something to be concerned about? Just curious.

 Rick

[Cadman-iac]

Here's a couple of pictures showing the new location of the upper idle air bleeds and the primary air bleeds in the air horn.

And a couple more showing the plugged original UIAB.

[novadude]

The air horn UIAB will typically need to be smaller than the main body, indirect UIAB.  On my current carb, I am running a 0.040 UIAB (air horn with screw in bleed like yours), 0.062 LIAB, 0.029 idle tube, and 0.046" IDCR.  Plenty of fuel for a nice idle with a 217/225 @ .050, 108 LSA cam.