Thunder Series AVS Carburetor; New; 4 bbl; 800cfm; Square Flange; Manual Choke; Single/Dual Fuel Inlet; Gas; Mech. Secondary w/Adj. Velocity Air Door;
The Edelbrock 1812/18129 Thunder Series AVS 800 CFM manual choke carburetor has been designed and calibrated to deliver optimum street performance. Several characteristics make the 1812 Thunder Series AVS 800 CFM manual choke carburetor an outstanding street performer. The first one is that metering rods are utilized to transition between circuits. The carburetor is unaffected by engine backfires, which means that there are no power valves to blow out, and the rods can be changed in seconds without carburetor removal or fuel draining. Secondly, the carburetor has the unique ability to hold a tune, so once it is tuned, the carburetor stay's tuned. What this means to you is that compared to other carburetors, the performance remains consistent and the calibration stays unchanged. The third characteristic is the primary and secondary booster clusters that are utilized offer the most accurate and up-to-date calibration available for todays fuels and octane levels. Fourth the unique Thunder Series Qwik-Tune Secondary Air Valve allows for limitless calibration of the secondary circuit with simple hand tools while on your vehicle. Its quick. Its simple. Its effective. It can be easily adjusted - in seconds - to suit your application... no extra parts required to achieve optimum performance. Simply put the Edelbrock 1812 Thunder Series AVS 800 CFM manual choke carburetor is undeniably the most innovative and dependable street performance carburetor available today. (CALIBRATED FOR OPTIMUM STREET PERFORMANCE) 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 .113, Secondary .101; Metering Rods - .068 x .047; Step-Up Spring - Orange (5 Hg). Use Carb Studs #8008 or #8024 if needed.
  • New Qwik-Tune Adjustable Secondary Air Valve
  • Optional Single Or Dual Fuel Inlet
  • Distinctive Black Accented Hardware
  • No Gaskets Below Fuel Level to Prevent Leakage
  • Metering Rod/Step Up Springs Can Be Changed Easily
  • GM/AMC-Style Throttle Linkage
  • Exclusive 12-Month Complete Satisfaction Warranty

Application Summary:

Year Make/Model
1967-1974 American Motors Ambassador
1967-1968 American Motors American
1968-1970 American Motors AMX
1971-1974 American Motors Hornet
1968-1974 American Motors Javelin
1967 American Motors Marlin
1971-1976 American Motors Matador
1969 American Motors Rambler
1967-1970 American Motors Rebel
1965-1967 Avanti II
1969-1972 Avanti II
1977-1980 Avanti II
1974 Bricklin SV-1
1969-1974 Bristol 411
1973-1975 Buick Apollo
1971-1973 Buick Centurion
1957-1958 Buick Century
1973-1981 Buick Century
1959-1981 Buick Electra
1959-1964 Buick Estate Wagon
1970-1980 Buick Estate Wagon
1965-1967 Buick Gran Sport
1970-1972 Buick GS
1968-1969 Buick GS 350
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1959-1963 Buick Invicta
1959-1964 Buick LeSabre
1968-1980 Buick LeSabre
1958 Buick Limited
1973-1980 Buick Regal
1982-1987 Buick Regal
1963-1980 Buick Riviera
1957-1958 Buick Roadmaster
1965-1972 Buick Skylark
1975-1979 Buick Skylark
1968-1969 Buick Special
1968-1972 Buick Sportwagon
1957-1958 Buick Super
1962-1970 Buick Wildcat
1965-1976 Cadillac Calais
1956-1984 Cadillac Commercial Chassis
1956-1980 Cadillac DeVille
1956-1978 Cadillac Eldorado
1965-1980 Cadillac Fleetwood
1982 Cadillac Fleetwood
1956-1964 Cadillac Series 60 Fleetwood
1956-1964 Cadillac Series 62
1958 Cadillac Series 70 Fleetwood Eldorado
1956-1964 Cadillac Series 75 Fleetwood
1966-1974 Checker Aerobus
1969-1970 Checker Deluxe
1965-1974 Checker Marathon
1977-1979 Checker Marathon
1969-1974 Checker Taxicab
1962-1975 Chevrolet Bel Air
1981 Chevrolet Bel Air
1962-1972 Chevrolet Biscayne
1969-1974 Chevrolet Blazer
1969-1972 Chevrolet Brookwood
1975-1986 Chevrolet C10
1966-1974 Chevrolet C10 Pickup
1967-1986 Chevrolet C10 Suburban
1975-1986 Chevrolet C20
1966-1974 Chevrolet C20 Pickup
1967-1986 Chevrolet C20 Suburban
1975-1986 Chevrolet C30
1966-1974 Chevrolet C30 Pickup
1967-1987 Chevrolet Camaro
1966-1988 Chevrolet Caprice
1964-1973 Chevrolet Chevelle
ASIN B000630G3M
Barrel Four
CFM 800
California Proposition 65 WARNING: This product can expose you to Zinc; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit
Choke Manual
Country of Origin (Primary) US
Emission Without EGR
Emission Code Off Road
Finish Anodized
Flange Square Bore
GTIN 00085347018123
Harmonized Tariff Code (Schedule B) 8708998175
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
PROP 65 Label Type Printed Carton
PROP 65 Risk Type Cancer and Reproductive
PROP 65 WARNING This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Potential Risk Chemical Zinc
SDR Required Flag N
SDS Sheet Number NA
Type Automotive
Usage Street/Hi-Performance
WARNING CA Proposition 65 Yes
WARNING CA Proposition 65 Message WARNING: This product can expose you to Zinc; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit

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Edelbrock 1812 Thunder Series AVS Carburetor