Offenhauser Dual Port 360 – run it or scrap it?

I'm building a stock 340 and have this Offy manifold. Is it worth trying? Its an odd thing.

- 68 4 speed cam
- hp manifolds
- real 10:1 compression
- 2.02 'O' heads
- 4 speed
- street use only
- carb - probably AVS2 650