Go with the Cobra Kiler kit. I hit 365 rwhp without the intercooler and 411 rwhp with the intercooler. Call Tim, aka Cobra Killer, he will be happy to answer all your questions.
I do not want to get rid of my intake.. I LOVE IT.. but i want a KB so im selling it.. the only good thing is the cost of the KB is lower now..
but in your case like said.. you have a REAL Bullitt so thats somthing to think about.. KB, Novi, Vortech, Procharger, you really wont be going wrong.. just to add the Bullitt intake LOVES Boost.. thats what makes it shine..
after you install the blower call a warranty place and get a quote.. mine was 1300 i think.. they will cover a blower that install..