Some things never change- - - -I can remember Dad changing air corrector jets on a BIG Zenith 2-barrel he used on an alcohol-fueled Ford flathead back in the early 1950's to adjust for track conditions and humidity. The carb was originally for a big Mack truck 6 cylinder, but it would flow more volume than the 3 Stromberg 97's his competitors were running. The corrector jet works in reverse to fuel jets- - - -bigger diameter is leaner.
He was race-tuning with a chassis dyno one of his sponsors, a trucking company, had in their shop.
Jerry
