Gene,
The Fox spraybar with the two holes is the stock arrangement. If you look carefully you will notice that the holes are slightly off the centerline of the spraybar. The correct position for this arrangement is to have the holes positioned so the low offset side is on the bottom facing the crankshaft and across the venturi bore. When you do this they will be just out of line of sight looking down the bore. If you have a replacement single hole spraybar point it either straight down the bore or at 90 deg to the back of the venturi.
If you use the original Fox needle valve make sure you put a small piece of fuel line tubing against the face on the needle to seal the threads.
Best, DennisT