lt, exhaust, lid, dry n20. upgraded valve springs,tune
lca, sub frame conectors.

 

Headers/pipe setup, Magnaflow Exhaust, Used fast 90 maybe have enough left over for a
for tune (which you should have done anyway!) and scratch and dent 125 nitrous kit from Zex (DON"T forget window switch) if there is money left over
or
you could work on suspension mods first with LCA's SFC's QA1 adjustables, tires (MT/ET's) etc
WS6 store has good selection as does Texas speed

 

Auto or manual?

If it's a manual I'd spend it on rear end or suspension.

Auto I'd have someone build the trans and put a 3600 stall in it.