I'm looking at the 350 GM Performance parts engine off of Jegs.com, and currently I have a 305 TPI, I'm having a shop do the computer work and everything, But I'm wondering what else I need to order other than just the crate. I know I'm getting the Intake Manifold from scoggin dickey for like $350, but what else will I need I also have Shorty Headers, dumped into Dual 2-1/2" exhaust...What else will I have to do?