[Blacky]

Yes, something seemed strange when I read it earlier today. Somebody with a car like that should know it's 2 throttle bodies not carbs. Also the top speed seems outrageous no matter what modifications have been done. An extra 100mph requires huge amounts of extra power to attain.
As for the attachment on the intake, it looks like one of those bogus electric superchargers they sell on Ebay to unsuspecting smucks.