971of1000

I am currently at 372whp. I am running a stock maf, stock tb with ls6 intake on an 02 trans am. It has a tr224 cam (I believe) 241 heads, long tubes and 2 1/2 duals all the way back. I bought it this way and am trying to hit the 400 mark on pump gas efficently.

VandykeT/A

Throw on a set of heads and you'll be there. I think most people pick up about 25 with stock 243s that would put you right where you want to be or go with a ported set and be over.

Jkeenan

iTrader: (1)

If you buy some 5.3L CNC Ported Heads you should get above the 400whp mark. they match up really well with the cam u have in your car too.

777

iTrader: (21)

Get some PRC 5.3L heads from www.texas-speed.com You will hit your mark with ease.

INMY01TA

iTrader: (1)

Heads will do it but changing the cam will be cheaper. Cooler being a 400rwhp car cam only then head and cam imo.

ULTIMATEORANGESS

iTrader: (4)

heads and FAST and retune. wont be cheap but well worth it.

adamantium

iTrader: (3)

Electric cutout or Bigger exhaust, Bigger TB and e85 cheaper than going heads and fast. Should yield more power and youll still be cam only.

ls1ya

iTrader: (2)

I was thinking port heads, tb, intake and a tune. If not you can always resale those and buy above mentioned; Fast, 5.3s, other cam.

atrain59

iTrader: (31)

I made 401.72 rwhp & 389 tq with a Stock 853 heads, Stock Tb, Stock Maf, BBK Intake,SLP Lid & Bellow, 228R Cam, Kooks Lt & ORY, ASP Underdrive Pulley and a light weight flywheel.


Bigger Cam and a tune would get you very close.
My buddies 02 Ws6 with Stock Heads,Stock TB, V2 Cam, Kooks LT & Catted Y, 3' Flowmaster exhaust put down 397 rwhp and 377tq
He added some TSP Stg 2 LS6 heads and put down 444rwhp

hotjohnnyls1

run a bigger cam

agenthol302

iTrader: (1)

i would advise going with e85...at this point in the game for u its just a waste of money and e85 is really overated

u have 2 ways you can go

1. Bigger MAF, along with a 92/92 F.A.S.T. or even 102, 3in exhaust, and a tune

2. or do the heads or bigger cam

ls1 1990 VN

Why would you want to put any restriction at all in your air intake...Go mafless & tune with heads.