Edelbrock's unique Qwik-Tune Adjustable Valve Secondary allows you to adjust the secondaries with simple tools. . . no springs required. Use a late opening for heavy vehicles with higher ears, or an early opening for light vehicles with lower gears. Thunder Series AVS carbs deliver optimum performance for whatever you drive.
Edelbrock Thunder Series AVS carbs have a CNC-machined and profiled front face for a smooth, clean look, and distinctive black hardware delivers a totally custom appearance. They look as hot as they perform!
These carbs have great performance features such as: float levels set at the factory, so adjustments are rarely needed - bolt-on-&-run performance; 2-step metering rods for independent tuning of cruise and power circuits; change jets, adjust floats or replace needles and seats without draining fuel.
