Take it to the strip and find out.
It's really hard to say how quick it is. Without tuning and just cranking the boost up, you're probably going to be knocking/pulling timing. This is very bad for power production, and even worse for engine longevity.
FWIW, my time was with just a turboback, uppipe and a K&N short ram. My 60 ft sucked, and I could've driven alot better. If that helps you at all.
My car is well, it's like 10 lbs of shit in a 5 lb bag...
<------ Click to see what I'm workin' with. ;)