[Masshole]

Recently started mods...e303, 3.73, flows, headers, cold air intake, maf conversion and strip/street AOD valve body. Ive read that with a 303, I would need new heads and throttle body for it to run right....and that I should get a transmission cooler. There is already a transmission cooler..why does no one ever mention it comes stock? Or would I need a larger one?

[BIG G]

i really dont think you need new heads or throttle body to run right, although a throttle body 65mm? and a c&l meter 73mm will help it, what is your timing set at? try about 14btdc, big G