What would you do? Slant performance

To build a /6 has to be a labour of love not money sense.
The reason people recommend 360 all the time cause it just makes $$$$ sense. A good running 360/Magnum with 4bbl cam and exhaust could be had for the $2000. Problem with /6 is the head there just not a lot of potential hp in there with cam header and intake your lucky you to get stock 318 2bbl hp with 2/3 the torque.
273/318 are a cam headers and carb away from 300 hp and 340/360 are that away from 400 hp.