What would you do?

I'm looking for opinions on a 318 build I currently have in the shop. The application is for a 67 Fury (I know this is an A body forum, but the A engine is relevant), 3.23 gear, 727 trans with a stock converter, and is driven all over the country to historical landmarks, and to participate in parades. The car has a patriotic theme, and is invited to participate in many patriotic events. It can be seen at www.websfury.com.

Because of the extensive distances traveled, reliability, driveability, and efficiency is important. The car has a Performer manifold and 600 cfm carb, and exhaust manifolds. The engine was built previously by two other shops, but the owner was not satisfied with the results.

My questions are, since it is a near stock 318 build, would you spend the extra money to;

A. Torque plate hone the block?

B. Balance the rotating assembly?

Thoughts?