I have a 454 crate motor, block #14015445 (1975-1987) 4.2 bore with a 4 bolt main.

I think it's a Mark 4 engine. The cylinder heads are oval port with a casting #14092360.

What is my best combo with 1) camshaft 2)manifold 3)carb  with the least cost/ most power and reliability?

Any insight would be appreciated!