I'd say go with the KB 2.2....but am I the only one who want to S/C their car without the S/C whine? How quiet is the KB below 3500 rpms?...sorry to highjack ...to me the best sound is that of the exhaust, not that coming out of the hood compartment.
Screw that! If money is an object ditch them both in favour of a Novi 2000 or a T-Trim. Both will bring you into the 10's...even 9's for far less than what it would cost to do it with a KB or a TT set up.