A few companies have recently ventured into the Coyote intake manifold market and when we saw Holley’s fabricated version, we had to test it. “The Coyote is obviously an innovative, new engine capable ...

Have you ever wondered if the parts you're using are the best ones for your application? We sure have, which is why we take advantage of any opportunity to test a variety of parts and pass along the ...

Since the days of relieving flathead Fords, we've known about the advantage of porting. Grind those critical passages with the right touch, and airflow through the engine improves-and with more air ...

There are few engines in the diesel world that are as well-known as the Cummins, especially the current form of the 6.7L Cummins found in 2007 to current Ram ¾ and one-ton trucks. These engines are ...

After viewers suggested a rebuilt Buick 350 engine was being choked by its stock cast iron intake manifold, machinists tested both the original and an aftermarket aluminum replacement on a flow bench.

Intake manifolds may not be the most well-known automotive components, but that doesn't take away from their importance. These devices are responsible for sending a precise mixture of fuel and air to ...

For most gearheads, there's nothing quite thrilling like the roar of a tuned engine and the instant kick of improved acceleration. Of course, buying a muscle car to enjoy lots of raw power and torque ...

Do you work on your car? Chances are its intake manifold is iron or aluminum. The latter used to be somewhat special to performance fans but today we are in a golden age of the aftermarket, with ...

If you think about it, there are things about your car that just don’t make sense. You’ve been told that more air is a good thing for power, that a cold air intake, more scoops, more vents, etc, are a ...