400 to the wheels you will need;

AZPS02 Cam (Ed Curtis)
243 heads Done to cam specs by AI milled .005 and 64CC chambers
LS6 valves/stock rockers
LS1 lifters
Vararam vr-b2
36# injectors
FAST 90 ported
90MM TB port and polished
Comp hardened PR
Comp 921 springs
Melling 10296 HV
double roller timing chain
Headers 1 7/8 LT w/ 3X2.5 X pipe
3400 stall
RPM stage IV 4L60E
ZO6 3.42 diff with upgraded clutch packs and hardened op shaft
shifting at 6800 redline @ 7000
One hell of a tune

on 91 octane that is what it took me to get 412 hp on an A4. Considering am running about 585 hp to the crank.

good luck

 

Are you the owner/mechanic, or are you putting this together for a customer? I gotta say you seem to have no idea what an LS1 wants....................