VVT and Throttle body injection is a great thing.
Most of the newer LS's, Gen 3 Hemi's, and Coyote engines have this also.
The good ole 350 is 50 years old. Not many tundra's or Toyota V8s from that era.
But the ole 350 has a few tricks also.
http://www.chevrolet.com/performance...-burn-385.html
http://www.chevrolet.com/performance...t-350-400.html
Not bad for a 50 year old design... no superchargers or turbos required.
Even reasonable streetable.
If you want a newer engine to compete with newer technologies.. check the LS3's.
http://www.chevrolet.com/performance/crate-engines.html
Most are around 430hp, and at least one is rated at 480hp.
I have a smallblock in my truck.. I'd be happy to race your Tundra in it.