What 0-100 performance times should I get?

[fiend1]

I have recently bought a 1995 TT Auto. I have done the exhast with high flow cat 3 in all way to turbo's, have k&n sports filter and intake, Bov and SMT6 ECU.
It went 220@ the wheels on 12psi. I am getting Adjustable Cams, Electronic Boost controller and front mounted intercooler. I have been told with these things I will get about 250@ the wheels but get much better response down low. I just want it set up for maximum accelaration 0-100 times. I feel like now it's running about 4.5 to 4.8 0-100. Just wanted to know if I can expect close to flat 4 0-100 with the extra mods. Can anyone let me know if this is realistic.