Hi has anyone heard of shimming the inlet valves to the runners on a single-carb manifold for better balance ie. more lift on 1 & 4 to compensate for the extra length runners on those cylinders?

Does it sound like a waste of time? (not my idea)

 

It's not April.

 

Thanks. No, I thought not :/

 

Design a better inlet manifold with equal flow

The valve shimming is ballocks