If you install a superram plenum and runners on a stock TPI intake and use a stock throttle body will you see any HP gains?

I was told a superram is to much for a 350, so by leaving the stock intake, would this help?

Or should I install a TPI vortec intake with vortec heads and put the superram on top with a 52 mm throttle body?

Which cam would go with this setup?

 

The SuperRam runners are larger than the stock intake manifold, so there will be a mismatch. The SuperRam is not too big for a stock 350. It was designed as a replacement for stock and modified 350 engines. The camshaft depends on how radical you want to go. Too much cam will require a custom chip and tuning. Too little cam will not give you the power you want.