©2008 Edelbrock Corporation
Brochure #63-0170, Rev. 1/08 - AJ/mc
Catalog #1801-1806,1812, 1813, 1825, 1826
Thunder Series AVS Carburetors
Page 2 of 6
POWER BRAKE PORT
(Rear of Carburetor - 1/4” NPT)
MUST BE PLUGGED WITH
SUPPLIED 1/4” PIPE
PLUG IF NOT IN USE
IDLE MIXTURE SCREWS
Left side screw for left side of carburetor
Right side screw for right side of carburetor
FUEL INLET
For 3/8” hose. Dual fuel inlets are
available (Supplied installed on passenger side.
May also be moved to driver side)
PART NUMBER
(Stamped on pad at front
of carburetor; Except
EnduraShine™ models)
TIMED VACUUM PORT
(3/16” - Vacuum is introduced off idle)
PCV PORT
(For 3/8” hose)
NOT FOR FUEL!
MANIFOLD VACUUM PORT
(3/16” - Vacuum is present at idle)
IDLE SPEED SCREW
AVS ADJUSTMENT
(See Page 4)
Figure 1 - Fittings and Vacuum Port Location
❑
New Fuel Filter (Edelbrock #8135 or equivalent) or Fuel Line/Filter
kit such as Chrome Steel Fuel Line Kit #8134, Dual Feed Line
#8132, Dual Feed Line with blue filter #8133, or Dual Feed Line with
polished filter #8128
❑
Banjo Fuel Fitting #8089 (If required for fuel line clearance)
❑
New Air Cleaner (Edelbrock #1221 or #4221 recommended)
❑
Air cleaner spacer #8092 (3/4”) (If using stock air cleaner)
❑
Choke cable kit (manual choke carburetors)
❑
Throttle Linkage Kits for Ford or Chrysler applications (see
“Carburetor Preparation” section, Step #1)
❑
Electrical connectors (electric choke carburetors)
❑
Carburetor adapter, for other than square-bore intake manifolds.
Do not use a 4-bbl. to 2-bbl. adapter. Edelbrock carbs must be used
on intake manifolds designed for 4-bbl. carburetor only!
❑
Throttle cable, transmission, and cruise control bracket #8031 for
small-block and big-block Chevy, or #8032 for small-block Chevy
with Vortec and E-Tec intakes. Other applications may require
modification to original throttle cable bracket.
❑
Universal throttle return spring kit #8005 (If original return spring
cannot be used)
PARTS RECOMMENDED FOR INSTALLATION
RECOMMENDED TOOLS
❑
Sockets/wrenches/tubing wrenches
❑
Pliers
❑
Screwdrivers
❑
Hacksaw and/or tubing cutter
❑
#20 Torx Driver (for electric choke models)
❑
Wire crimpers (for electric choke models)
❑
Test Meter or Test Light (for electric choke models)
INSTALLATION PROCEDURE
