Best Prices: 500 CFM Square Flange Electric Choke (Non-egr) Endurashine » Edelbrock

The Best "Street Performance" Carburetor Edelbrock engineers have made a great carburetor even better. The new and exciting Thunder Series AVS carbs are designed and calibrated to deliver optimum street performance in hundreds of applications--they are undeniably the most innovative and dependable street performance carburetors available today. AVS stands for Adjustable Valve Secondary, which means just that--you have the ability to adjust the secondaries with simple tools (no springs required). You can use a late opening for heavy vehicles with higher gears or an early opening for light vehicles with lower gears. For unmatched street performance, combine these carburetors with Edelbrock Performer, Performer Air-Gap, Performer EPS, Performer RPM, RPM Air-Gap, or Torker II manifold and camshaft combinations. Thunder Series AVS Carburetors: * All the same advantages of the Edelbrock Performer Series, such as factory-set float levels for infrequent adjustments, 2-step metering rods for independent tuning of cruise and power circuits, and the ability to change jets, adjust floats, or replace needles without draining fuel * Qwik-Tune secondary air valve * A sturdy 2-piece body with no power valves to blow and no gasket below the fuel level for leak-free operation * CNC-machined and profiled front face delivers a smooth, custom look * Tumble-polished or Endurashine finish * Spring-loaded needles and seats for consistent fuel supply over rough terrain and side-mounted fuel chambers that are less likely to flood when a vehicle climbs hills (ideal for off-roading and the 4x4 environment) * Optional single or dual inlet for total fuel plumbing flexibility * Available in 500, 650, and 800cfm with either manual or electric choke * Manual AVS carbs cannot be converted to electric choke