Q.My 1933 Ford has a 351 Ford fuel-injected engine. We can't get a good tune because the inlet air is heated by the radiator, so we want to install a cold air system, drawing cool air through the hood ...

Louvers are cool-literally. They were invented to let hot air out of the engine compartments of race cars and other things that needed ventilation. Then hot rodders at the dry lakes found they were ...