Dodge 360 more HP.

When it comes to heads, you'll find out than it can be done 5 different ways, ported factory iron is easy, buying aftermarket heads is easy too though might cost u more by the time u get them shipped and re setup for the springs u need n such. A cam in the 268* with lots of lift or cam in the 276*-284* duration with moderate lift will achieve the horsepower as well having around 9.5+ compression. Any rpm intake wether standard or airgap from eddelbrock would work...as well as the old ld340 manilfold with a Holley 700-800 CFM carburetor. Good rockers with a more honest ratio would well be a good idea if u can swing the cost.
Good luck.