Hot Rod

Single-Plane vs. Dual-Plane: How Do I Choose an Intake Manifold?

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...
Hot Rod

Late 350 Chevy TBI Heads on a Carbureted 1970's Short-Block

A:I have a '72 350 Chevy engine without the original heads. Can '90 350 throttle-body injection (TBI) heads off a 1500 Chevy truck work? Some engine shops told me yes, and some said no, because of the ...
Motor Trend

Edelbrock RPM Air Gap LT1 Intake Manifold Testing - Top End

For years LT1 enthusiasts have been running well into the nines with factory LT1 and LT4 intake manifolds. With some porting the factory castings have proven capable competitors, even on big-cube and ...
Motor Trend

Composite Intake Test: AFR Dual-Plane vs. Single-Plane

Editor’s Note:Back in our February 2014 issue, we compared Air Flow Research’s Titan TX-series single-plane polymer intake manifolds on a 383 stroker in a former ...