how to add Horse Power to my 74' chevy Nova?

[switch_31]

my nova has a 350 sb my question is can i install a holley street avenger 4150 4-barrel carburetor 670 cfm or do i have to upgrade other parts and i also want to put in a cam but don't know which one is best for my car to get maximum HP what i have on my car already has Mallory Promaster coil, Mallory distributor and edelbrock intake manifold

[Arturo B]

Get a performance cam with new lifters, springs, retainers and a new intake and a new holley carb, you gonna add really good HP.