My '94/5 ceramic coated BBK longtubes have an EGR bung. The headers aren't new, I've had them for about 5 years. They clear a Fox bell/tranny setup (TKO600 and SFI bell) just fine, but don't know if there's any problems the other way around. I haven't had a set of BBK Fox headers to compared the differences between them and SN95 primary tube routing.
.... I used to have MAC longtubes and the drivers side primary tube routing was different between the fox and SN95 and the SN95 model headers would run right up against the clutch cable where it entered the bell, but the fox primaries were routed differently and it wasn't a problem.