[ohno50]

Thanks for all of the help everyone. I found out some more info....
850 Demon Carb w/ mechanical secondaries. Due to the duration of the cam, I am guessing that its a "Mighty Demon". The engine is a Ford Racing 460 Crate Engine (P/N M-6007F460FT).
Answering the question on driving style; I don't drive it super hard, I'll trounce on it now and then but the laws here in Ontario are pretty strict when it comes to muscle/performance cars and aggressive driving and the car is already a heat score when I'm just sitting at the stop light idling!!
I think I'll save up my $$ and get a proper dyno tune and see what that gets me. I imagine they'll say the carb is too big for what I need but I'll deal with that when it happens. Still a blast to drive though, as you all know there's nothing like having a 550hp go kart!!!