Page 74 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

FUEL SYSTEM COMPONENTS

ANGLED CARB SPACER UNIVERSAL RETURN
ALL25975 SPRING BRACKET ALL54167
For dirt late models and modifieds, spacer Chrome plated steel bracket provides mounting location for
is angled downward, toward left front, to return spring.
correct hesitation caused by poor fuel distribution as
car “rocks up”. Four-hole design enhances carb signal to UNIVERSAL RETURN
improve throttle response and increase torque.
SPRING KIT ALL54166
Kit includes two springs and mounting
CARB SHEAR PLATES bracket.
Carb plates with built-in shear design help maximize performance on race
engines with a large amount of cam overlap by creating a dam under the
throttle plates, helping to build low pressure while improving vacuum signal to RETURN SPRINGS ALL54163
the carb. 1/2" tall plates are machined from 6061-T6 aluminum and clear anod-
ized to protect against corrosion.

Universal springs for carburetor are 11.5" long unextended. Package of 2.
THROTTLE BUSHING KIT
ALL54164
ALL25970 Bottom View
Aluminum bushings are stepped for clearance and
Part No. Description adapt from 1/2" to 1/4" holes.
ALL25970 4150 1-3/4" Bore
ALL25972 4500 2" Bore THROTTLE SPONGE
ALL25973. 4500 2-1/8" Bore ALL26070
Throttle sponge softens the first 1/2"
ADJUSTABLE BASE PLATES ALL26180 of pedal travel to control tire spin and
The “Governor” is a four-hole aluminum spacer with prevent bent or damaged linkage. Com-
replaceable tapered inserts (sold separately) which patible with all throttle linkage components. 1/4"-28 threads.
can be quickly changed after carb is removed. Note: Linkage must be shortened and the proper return springs selected.
Restricts air/fuel entry and reduces power Two springs provide the best results. Placing the “E” clip closer to the
slightly to prevent wheel spin. Inserts range center locks the unit out.
in size from 0.950" to 1.400" for custom tai-
loring and quicker lap times. Fits all Holley 4bbl. 4150/4160 QUICK RELEASE
series carburetors. Choose from 1/2" or 1" tall base plates. THROTTLE CABLE ENDS
Part No. Description
Quick release ends are used when a throttle con-
ALL26180 1/2" Tall Adjustable Base Plate nection needs to be removed and installed often.
ALL26060 1" Tall Adjustable Base Plate Steel constructed housing has a spring-loaded
Part No. Description Part No. Description release to keep housing secure to pivot ball.
1/2" Inserts, 1" Inserts, Part No. Description
Set of Four Set of Four ALL54147 3/16"
ALL26181 0.950" Inserts ALL26061 0.950" Inserts ALL54149 1/4"
ALL26182 1.000" Inserts ALL26062 1.000" Inserts
ALL26179 1.050" Inserts ALL26059 1.050" Inserts ALUMINUM CARB LINKAGE
ALL26183 1.100" Inserts ALL26063 1.100" Inserts WITH RETURN SPRING KITS
ALL26184 1.150" Inserts ALL26064 1.150" Inserts Kits include all necessary carburetor hardware and a 24" linkage rod.
ALL26185 1.200" Inserts ALL26065 1.200" Inserts ALL54158 includes a hollow rod that is easily formed to fit many
ALL26186 1.250" Inserts ALL26066 1.250" Inserts applications and requires tapping with a 1/4"-28 tap if
ALL26187 1.300" Inserts ALL26067 1.300" Inserts shortened. ALL54160 includes a solid rod and is
ALL26188 1.350" Inserts ALL26068 1.350" Inserts commonly used to minimize flexing and
ALL26189 1.400" Inserts ALL26069 1.400" Inserts requires drilling and tapping
with a 1/4"-28 tap if
shortened.
Description
Part No.
CARB MOUNT ALL54158 Kit With Hollow Threaded Rod
RETURN SPRING KIT ALL54160 Kit With Solid Threaded Rod
ALL54168 Replacement Components
Kit includes chrome plated steel ALL54159 Carb Linkage Only, Hollow
bracket, springs, bushings and hard- ALL54162 Carb Linkage Only, Solid
ware to fit a variety of applications. ALL54168 Return Spring Kit

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