Need advise on building a 1967 273....

I recently came across a numbers matching 1967 Dart GT with lots of documentation..After weeks of debating, I have decided to restore it keeping the factory 273 and not swapping to a new EFI motor. I will update the brakes, change the color, change the rear end (but keep it), and make some other changes. My question is, can I build the 273 into a strong motor? What setup is recommended to make it put down good reliable HP with the factory trans?

Thanks!