Edelbrock Thunder Series AVS® Carburetors


500 CFM, MANUAL OR ELECTRIC CHOKE CARBURETORS
Designed and calibrated for small cubic-inch engines such as 305 c.i.d and smaller Chevrolet; 302 c.i.d. and smaller Ford and dual-quad applications such as our new RPM Dual-Quad Air-Gap, Edelbrock C-26, F-28 and Street Tunnel Ram. For single carb applications, match with an Edelbrock Performer or Performer EPS manifold or other brands of similar design. Includes both timed and full vacuum ports for ignition advance. #1801/#1802 are calibrated for single-quad applications and factory equipped with: Metering Jets - Primary .086, Secondary .095, Primary Rod .065 x .052, orange spring (5" Hg). #1803/#1804 is calibrated for dual-quad applications and factory equipped with: Metering Jets - Primary .086, Secondary .077; Metering Rods - .065 x .057; #1804 includes Primary .086, Secondary .077; Metering Rods - .065 x .052; Step-Up Spring - orange (5" Hg). Use Carb Studs #8008 or #8024 if needed.
Thunder Series AVS® 500 cfm Manual or Electric Choke Carburetors by Edelbrock
Application Emissions Satin EnduraShine
CALIBRATED FOR SINGLE CARB APPLICATIONS
Thunder Series AVS® 500 cfm, Square-Flange, Electric Choke Carburetor (non-EGR) 1801 18014
Thunder Series AVS® 500 cfm, Square-Flange, Manual Choke Carburetor (non-EGR) 1802 18024
GM Transmission Cable Adapter - 8026 -
 
CALIBRATED FOR DUAL-QUAD APPLICATIONS
Thunder Series AVS® 500 cfm, Square-Flange, Electric Choke Carburetor (non-EGR) - 1803 18034
Thunder Series AVS® 500 cfm, Square-Flange, Manual Choke Carburetor (non-EGR) - 1804 18044
Universal Carburetor Choke Cable with Polished Knob - 8013 -
Edelbrock Installation Note INSTALLATION NOTE: Manual choke AVS® Carbs cannot be converted to electric choke. Carbs #1803, #1804 and #18034, #18044 are calibrated for dual-quad applications only and need to be purchased together, one manual and one electric. For single carb small-displacement engines and Street Tunnel Ram applications use carbs #1801, #1802, #18014 and #18024.

650 CFM, MANUAL OR ELECTRIC CHOKE CARBURETORS
Designed and calibrated for optimum street performance in small-block and some big-block engines. Match with a variety of manifolds that include Edelbrock Performer, Performer EPS, Performer RPM, RPM Air-Gap, Torker II or other brands of similar design. Includes: Metering Jets - Primary .095, Secondary .098; Metering Rods - .068 x .047; Step-Up Spring - Orange (5" Hg). Use Carb Studs #8008 or #8024 if needed.
Thunder Series AVS® 650 cfm Manual or Electric Choke Carburetors by Edelbrock
Application Emissions Satin EnduraShine
Thunder Series AVS® 650 cfm, Square-Flange, Electric Choke Carburetor (non-EGR) 1806 18064
Thunder Series AVS® 650 cfm, Square-Flange, Manual Choke Carburetor (non-EGR) 1805 18054
Universal Carburetor Choke Cable with Polished Knob - 8013 -
GM Transmission Cable Adapter - 8026 -
Edelbrock Installation Note INSTALLATION NOTE: Manual choke AVS® Carbs cannot be converted to electric choke.

650 CFM, MANUAL OR ELECTRIC CHOKE CARBURETORS
(CALIBRATED FOR OFF-ROAD PERFORMANCE)
Designed and calibrated for optimum off-road performance in small-block and some big-block engines. Match with a variety of manifolds that include Edelbrock Performer, Performer EPS, Performer RPM, RPM Air-Gap or other brands of similar design. Includes spring-loaded needles and seats for superior fuel control in off-road terrain. Includes: Metering Jets - Primary .095, Secondary .098; Metering Rods - .065 x .047; Step-Up Spring - Orange (5" Hg). Use Carb Studs #8008 or #8024 if needed.
Thunder Series AVS® 650 cfm Off-Road Manual or Electric Choke Carburetors by Edelbrock
Application Emissions Part #
Thunder Series AVS® 650 cfm, Off-Road Square-Flange, Electric Choke Carburetor (non-EGR) 1826
Thunder Series AVS® 650 cfm, Off-Road Square-Flange, Manual Choke Carburetor (non-EGR) 1825
Universal Carburetor Choke Cable with Polished Knob - 8013
GM Transmission Cable Adapter - 8026
Edelbrock Installation Note INSTALLATION NOTE: Manual choke AVS® Carbs cannot be converted to electric choke.

800 CFM, MANUAL OR ELECTRIC CHOKE CARBURETORS
Designed and calibrated for optimum street performance in small-block and some big-block engines. Match with a variety of manifolds that include Edelbrock Performer, Performer EPS, Performer RPM, RPM Air-Gap, Torker II or other brands of similar design. Includes: Metering Jets - Primary .095, Secondary .098; Metering Rods - .068 x .047; Step-Up Spring - Orange (5" Hg). Use Carb Studs #8008 or #8024 if needed.
Thunder Series AVS® 800 cfm Manual or Electric Choke Carburetors by Edelbrock
Application Emissions Satin EnduraShine
Thunder Series AVS® 800 cfm, Square-Flange, Electric Choke Carburetor (non-EGR) 1813 18134
Thunder Series AVS® 800 cfm, Square-Flange, Manual Choke Carburetor (non-EGR) 1812 18124
Universal Carburetor Choke Cable with Polished Knob - 8013 -
GM Transmission Cable Adapter - 8026 -
Edelbrock Installation Note INSTALLATION NOTE: Manual choke AVS® Carbs cannot be converted to electric choke.

Edelbrock Tech Note PRODUCT EMISSIONS GUIDE
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps