Engine Masters

Experts test four dual-plane intakes and find out which is the best value.

We go head-to-head-to-head-to-head to find the best dual-plane for your buck. Using our longtime test mule 372 small-block Chevy, we bolt up the four most popular Air-Gap style dual-planes.

The experts explore why increased engine temperature decreases power.

Engine experts explore what they've always known: increased engine temperature decreases power output. They also thought they knew the answer why, but today the 598 Chevy big-block gets some special heat treatment.

The experts take the mystery out of carburetor selection. More air means more power, but drivers need to know that bigger may not always be better and how to tell when they've crossed that line.

The experts take the mystery out of carburetor selection.

David Freiburger, Steve Dulcich and special guest Richard Holdener explore the science of reducing temperature out of a turbo in order to increase power out of the engine.

David Freiburger, Steve Dulcich and their guest Richard Holdener explore the science of reducing temperature out of a turbo in order to increase power out of the engine.

David and Steve bring in Richard Holdener to try to blow the lid off of internet blower manifold theories; they use FAST's modular-runner intake manifold to test both short and long runners and see how each reacts.

David and Steve bring in Richard Holdener to try to blow the lid off of internet blower manifold theories. They'll use FAST's modular-runner intake manifold to test both short and long runners and see how each reacts.

The guys demonstrate how much power can be wasted with a sub-par tune-up.

People always talk about ignition timing and air-fuel ratios, but never about the direct impact on power production. Our experts show you how much power you could be throwing away with a sub-par tune-up.

The last time the guys took on hydraulic and solid roller lifters, every answer generated more questions; now they'll try different combinations, then figure out what makes sense and what the consequences are for power and wear.

The guys put budget mufflers to the test. They'll run their 408 Cleveland with 12 different options, including no muffler, straight through, chambered and turbo style, then compile all the facts needed to choose the right option.

The experts test the limits of four budget mechanical pumps on their 500 horsepower Chevy engine. They'll see if each can deliver enough pressure and flow to support the power they've come to expect.

The crew dives into internet theories about big boost, big cubes and big RPM needing bigger plenum volume. They'll explore if increased volume really turns into increased power, or if it just leads to hood-clearance headaches.

The crew dives into theories about plenum volume and its effect on power.

David, Steve and Steve hunt for the best manifold to make big horsepower on a big-block Chevrolet. They'll throw four different manifolds from Dart, Pro-Filer, Brodix and Edelbrock on top of 598ci to see what makes a difference.

The guys see how much power they can squeeze out of a low-end 440 engine.

A proper 440 has been out of reach for most muscle-car enthusiasts for years, so the guys take a low-dollar, low-compression boat anchor people can actually afford and see how respectable it can be with just a little investment.