I understand that. But when you have a fuel pressure regulator that bolts to the PCV cover, which is attached to the blower, it's going to raise up with the blower when you put the IC under it.
It doesn't really matter though. The man himself answered my question. He says it will clear stock and aftermarket hoods with full size ICs. He said he's even installed them on cars with 2.5" Thrasher ICs with no issues.