That car runs low 8s on a GTE head with a 76mm turbo (smallest in its class). To my knowledge the only person i know running fast (and its just hearsay) is Vinny Ten's 7s tubed car.
I MAY use the GE head for cheapness (DaveH went 9.4 on it) but availability of parts for the GE head is LOW. Hit me up on AOL one night and we can chat about the options.