3.23 rear? there's a guy in RPM with 2.73s and a 4000 yank ST that went 12.5 on 17x11 black ZR1s and 12.6 on a 31" prostar/MT combo. i THINK he still posts here...
about the silver WS6es... the skinny spoke kind or the later optional kind? both are awesome.

get some MT ET radials on the rears and you'll be rollin'.
i want at least 1.8s out of that thing

practice makes perfect!