Crate motor wanting more!

[jason7698]

New to the board and just bought my first old truck a 1971 c10 swb with a new (2500) miles 290hp 4 bolt main 350 crate motor and 350 turbo trans. Now to my questions keep in mind I'm new and green so if the questions seem silly there is a reason. The engine has an edelbrock 600 carb electric choke on an edelbrock performer intake with long horn headers other than that the engine is stock and it does ok but I am wanting a little more out of it (330-350HP or a little more). It is a daily and will never see the strip and I am wanting to keep some decent mpg so nothing to wild. I know the heads and cam need to go but I don't have the funds for a new set of heads and cam only one or the other. I was thinking about keeping these heads for now and getting them pocket ported and some valve work done and putting in a cam maybe a Voodoo (opinions please). Lastly I have read allot about the ramhorns v/s after market headers and now I don't know what to do so let me have all the suggestions and opinions!! This is a great website and I've learned a ton already!! Thanks Big J