Holley sells a cam intake and heads combo that is suppose to produce 350 hp together. Both edelbrock and trick flow make parts that are designed (dyno tested) to run together but they sell them individually. Edelbrock's tech support is real friendly you can call them or e-mail them what you want and they can recomend a package for you
good luck
Trick Flow sells a package with twisted wedge heads, stage 1 or 2 cam, street heat or track heat intake, timing chain, and hardened pushrods. I'm not sure if there is anything else in the package, but I know it comes with that stuff. It goes for around $2049 or $2099 depending on which cam and intake you want.
I've heard better things about the trick flow package than the holley package, because supposedly the cam that comes with the holley package is crap. Summit sells the TFS package, and that's definitely the way to go. Most of the numbers people dyno at with the TFS package are around 300-310 rwhp and around 330 rwtq.