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!
Designed specifically to stand up to the tough 4x4 environment, these Thunder Series carbs include spring loaded needles and seats for consistent fuel supply over rough terrain. The side-mounted fuel chambers are less likely to flood while climbing hills . . . which means there is no need for extended vent tubes. 650 cfm size is ideal for most small block V8's.
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.
