Page 77 - 2022-23 Auto Performance Drag Racing
P. 77
Burst Panel Components
ALL26310
Restrictor Plates
DRAG RACING
Fuel System Components
Burst panel is designed to blow open or
release excessive manifold pressure in
the event of an internal engine explosion,
helping to prevent costly supercharger
and body damage. Panel meets SFI 23.1
specifications and is commonly used on
supercharged, alcohol-injected engines, mounting directly to the intake manifold or supercharger (screw-type only). Outer frame deflectors will direct force away from car.
ALL26180
ALL26311
ALL26314
The “Governor” is a four-hole alumi-
num spacer that accepts tapered
inserts which can be changed quickly
by removing the carb. Inserts restrict
air/fuel entry and reduce power
slightly to prevent wheel spin and
range in size from 0.950" to 1.400"
for custom tailoring and quicker
elapsed times. Spacer works with most Holley 4bbl. 4150/4160 series carburetors. Inserts sold separately.
ALL26313
Part No.
Restrictor Plate Inserts
Description
ALL26180
1/2" Restrictor Plate
ALL26060
1" Restrictor Plate
Part No. Description
Drag High-Flow Carburetor Spacers
Specially designed for drag race ap-
plications to isolate carburetor from
manifold, spacers prevent horsepow- er-robbing heat transfer and increase the distance from the bottom of the carburetor to the manifold plenum for better air flow. Spac- ers are CNC-machined in the U.S. from a polymer compound able to withstand temperatures up to 400°F. Available
Tapered inserts are machined to be within
.002" for precise tuning. Inserts feature a step
to simply drop into spacers and have sizes engraved
on each insert for easy identification. Sold in a set of 4.
ALL26310
Burst Panel, Large (3-1/8" x 6-1/8")
ALL26311
Outer Burst Panel Frame
ALL26314
Outer Burst Panel Frame with Deflector
ALL26313
Inner Burst Panel Frame (Used when manifold has an open plenum without burst panel support)
ALL26315
Fastener Kit 10-24 x 3/4", 24-Pack (For use with panel and outer frame or deflector.)
ALL26316
Fastener Kit 10-24 x 1", 24-Pack (For use with panel, inner frame and outer frame or deflector.)
Part No.
Size
Part No.
Size
For 1/2" Restrictor Plate
0.950"
For 1" Restrictor Plate
0.950"
ALL26181
1.000"
ALL26061
1.000"
ALL26182
1.050"
ALL26062
1.050"
ALL26179
1.100"
ALL26059
1.100"
ALL26183
1.150"
ALL26063
1.200"
1.150"
ALL26184
ALL26064
1.200"
ALL26185
1.250"
ALL26065
1.250"
ALL26186
1.300"
ALL26066
1.300"
ALL26187
1.350"
ALL26067
1.350"
ALL26188
1.400"
ALL26068
1.400"
ALL26189
ALL26069
ALL25981
ALL26190
Inserts are used in place of restricting
inserts allowing full throttle operation without
restriction, commonly used when qualifying or when track conditions allow for more power. Insert design provides a smooth transition over simply removing the restrictor inserts. Sold in a set of 4.
in open or four hole versions for 4150 and
4500 series Holley and Holley-style carburetors
in 1/2", 1" and 2" thicknesses. Tapered four-hole
spacers have specially contoured holes to increase air velocity under the carburetor. Not intended or recommended for street or circle track use.
Full Throttle Non-Restricting Inserts
Part No.
4150 Series
Description
Part No.
4500 Series
ALL25984
Description
ALL26324
Throttle Return Spring Brackets
Billet aluminum bracket can be used with cable or mechani- cal linkage. Bracket fastens
to carb mounting studs
ALL25980
Open, 1/2"
ALL25990
Open, 1/2"
ALL25981
Open, 1"
ALL25991
Open, 1"
ALL25982
Open, 2"
ALL25992
Open, 2"
ALL25983
4-Hole, 1/2"
ALL25993
4-Hole, 1/2"
ALL25984
4-Hole, 1"
ALL25994
4-Hole, 1"
ALL25985
4-Hole, 2"
ALL25995
4-Hole, 2"
ALL25986
Tapered 4-Hole, 1"
ALL25996
Tapered 4-Hole, 1"
ALL25987
Tapered 4-Hole, 2"
ALL25997
Tapered 4-Hole, 2"
Carburetor Hold-Down Nuts
and includes dual stain-
less steel return springs which are adjustable for tension.
A specially designed return spring arm attaches to the carb for simplified installation and smooth operation. Low-profile design clears most air cleaner assemblies.
Carb Size Clear Black
Note: Longer carburetor studs will be required to accommodate bracket.
ALL54201
Easily remove these hold-down nuts with a 1/4" extension. The spring ball on your extension holds the nut in place, no wrench or socket needed! Package of 4.
4150/Edelbrock
ALL54200
ALL54202
4500
ALL54201
ALL54203
Part No. Description
ALL26324
5/16"-18 Coarse Thread Nuts
ALL26326
5/16"-24 Fine Thread Nuts
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2022-23