Where is the intake restrictor on an Atomic Four Stevedore, and what does it look like?
The Stevedore variant of the Atomic Four in direct drive configuration had a restrictor in the intake port right above the carburetor. Although most people remove them hoping they’ll get more horsepower…. it doesn’t make much difference to a direct drive engine because they don’t rev much over 2,200 anyway. The restrictor is better left in place because it creates a different torque curve than the Atomic Four without a restrictor, and this modified torque curve has a “torque bump” which creates torque rise at cruise rpm… and torque rise is useful on a direct drive engine, it acts somewhat like a governor to maintain engine rpm and power when punching into waves.
