The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...

Old muscle-car divorced chokes don't work with aluminum heads lacking exhaust heat passages—but Integral electric choke conversion kits won't fit divorced-choke carb main bodies. That's a problem for ...

There's no end to the theories regarding carburetion, performance, and fuel efficiency. Just about everyone has a belief they stand by when it comes to carburetors. Fatten the mixture. Lean the ...

Have you ever wondered exactly what those articulating chunks of metal atop your intake manifold actually do? As a Gen Xer who was weaned on GM EFI systems, for years the inner workings of a ...