Back in the 80's there was a guy older than us that had a Vega with a 454 and an 871 poking thru the hood like that. He'd idle through the drive in with that bad sumbitch whining and we'd all just stand there with our mouths open! 671 fox FTMFW!
It's a street car so I'm only going for around 8lb boost that's about what I'm pushing now with a Kenne Bell and it seems to work out nice with the engine that I have now.