Head and cam question
My suggestion is to pick a few sponsors and then narrow your selection down from there. Call them up. You will get much more realistic numbers and pricing than you will asking this question here. If you need a few to start with I can help ya out.
Geoff @ EPS
Thunder Racing
Texas Speed and Performance
Speed Inc.
Maryland Speed
Mike Norris Motorsports
SNL Performance
A good set of LS6 (243 castings) heads and a 22X-22X cam should get you over that mark and still retain stock like abilities.
Next step is going to be tuning. This is a very important one. However, are you a manual or an automatic transmission? This will make or break your hopes of easily achieving your 400rwhp mark. I will let you tell us a little more about your setup and your plans before I start elaborating in the wrong direction. List a location of where you are and it will be much easier to find someone local to you that can meet your needs as well.
Moving thread to Internal III from External.
being that your an auto i would atleast run a 3600 size stall.. and go with a mid 230 duration cam..something like TSP Torquer 2 and the PRC 5.3 heads. you should be over 400rwhp easily.


