Small block combo suggestions

Bodyperson said

If I recall correctly the 273 was the only available small block in 1967. There was the version that came with factory headers but I doubt this is the exhaust we are referring to. I cant help but think you are running small port 273 exhaust manifolds on a 360.

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Actually I'm running 340 hp manifolds the exhaust system is the hp exhaust from factory in 1967. And yes it's a single exhaust wt muffler and resonater
In 67 no dual exhaust offered.
The gas tank retention strap is in the way on passenger side
The top end of the engine is all six pack stuff.