Carter AFB 9636 ?
OK, sounds good so far. Your strating with the floats, moving onto the possible cloging passages in the boosters and then leaning out the carb.
Try a 75** rod. Thats about the thickest in there right? If it needs to be leaner, you'll probably have to rejet.
.098 jet minus a 73 rod = 25 A 75 makes clearance 23. Hummmmmmm, thats kind of on the lean side I would think. Hummmmmmmmmmmmmmm