Hypothetical - Cheap 360 Magnum Rebuild
If you have the stock lifters, then IMO add a cam ($330 or so) and valve springs ($100 or so) and light a little fire under the hat.
A very mello grind can add 30 hp and drive like it was stock. A cam duration under
[email protected] will not require a stall converter. A cam under
[email protected] will operate super close to dead stock. It would be excellent with the 3.55's.
Been there doing that now. And in a heavier '79 B body.
Save your pennies