TUNING CARBURETTORS FOR COMPETITION EVENTS. The “Zenith” Carburettor.

TN this, the second article dealing with tuning car burettors, it will be advisable to consider the action

of carburation separately, and though some of the information detailed will be similar to that given in our January issue, it will be best to treat each carburettor individually, so that the article may be complete in itself without any need for back reference.