Hi guys! A lot has been done to the Pinto since I was last here. The biggest thing being that it's recieved a bright orange paint job. I did it myself so it's not perfect but it's a lot better

Anyways, I'm burning a lot of oil... and having some knocking.
I wanna rebuild the motor (2.3) or have it rebuilt and I'm wondering what a general price range will be for everything? When I do this I'd like to add a little horsepower so I was thinking maybe a lifted cam?
What about a 4 barrell Offenhauser intake manifold?