Owner`s manual

Some parts are not legal for sale or use in California on any pollution controlled motor vehicle.
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Fuel Management Systems
Choose genuine Holley service parts when renewing or modifying your Holley carburetor.
Only Holley service parts are guaranteed to be manufactured to the same demanding
specifications as the original components. Holley parts provide the fit, function, and
performance you expect. Demand the best, demand Holley!
DESCRIPTION PART NO.
0-15 PSI 26-500
0-30 PSI 26-502
0-15 PSI Liquid-Filled 26-504
MECHANICAL FUEL PRESSURE GAUGE
• 1-1/2" Diameter, Chrome steel case
• 1/8" NPT brass fitting
• Fits Holley chromed fuel lines and fuel block
APPLICATION PART NO.
For 0-1850 or most Model 4160 with side hung fuel bowls 34-6
For 0-3310 or most Model 4160 with center hung fuel bowls 34-13
Instantaneous response! Pulls
strongly throughout the RPM
band. Increases the capacity
over standard 30cc pump on
Holley Models 2300, 4150 and
4160 carbs. Eliminates flat
spots off idle or at any other
RPM range. Includes everything
required for easy installation.
Part No. 20-11
These kits are made to convert from a 4160 (metering plate) to a 4150 (jet
plate) style carburetor. Does not include fuel bowl.
50cc ACCELERATOR
PUMP CONVERSION KIT
APPLICATION PART NO.
4150, 4150HP with
center hung "cathedral" fuel bowls.
5/8 - 18 inverted flare fuel fittings
34-150
4160 with
center hung "cathedral" fuel bowls.
5/8 - 18 inverted flare fuel fittings
34-160
CHROME FUEL LINE
PRO SERIES SECONDARY
LINKAGE
Featuring Stainless Steel construc-
tion and a lightweight yet rugged
design, it provides a bulletproof
method of adjusting secondaries on
all Double Pumper, HP, and Ultra HP
carburetors. It allows user to pick
between 1:1 or progressive second-
ary ratio. Kit provides infinite adjust-
ment of secondary throttle blades
for maximum horsepower output.
Features:
• Choose between a 1:1 and a progressive secondary ratio
• Tough Stainless Steel construction for longevity, durability and control
• Simple installation
• Detailed instructions included
• Perfect for circle track and drag racing
• Compact design won’t interfere with throttle linkage
• Includes all necessary hardware
Part No. 20-122
HP MAIN BODY RETRO FIT
KIT for HOLLEY DOUBLE
PUMPER CARB
Update the performance of
your Holley Double Pumper
with a genuine Holley
HP main body.
Fits Double Pumpers
0–4777/0–4778/0–4779
Features:
•Pre-Calibrated At The
Factory For Optimum
Performance
• Simple Installation With
Common Hand Tools
• All Necessary Parts Are
Included
• Eligible For Holley Contingency Programs
APPLICATION PART NO.
HP Main Body - Classic Finish 134-300C
HP Main Body - Shiny Finish 134-300S
CARBURETOR SECONDARY THROTTLE
ADJUSTING LEVER KIT
Allows quick and easy adjustments.
Part No. 26-137
MANUAL CHOKE
CONVERSION KIT
All parts to change over to hand choke
operation. For carb Models 2300/4150/4160
with choke hardware mounting boss on side of
main body. All parts not shown.
Part No. 45-225
For carburetor designed with an “external” vacuum source such as.... 0-4412;
0-4776; 0-4777; 0-4778; 0-4779; 0-4780; 0-4781; 0-6299; 0-6708; 0-6709.
Part No. 45-224
ELECTRIC CHOKE
CONVERSION KITS
Convert your Holley carburetor to electric
choke. For carburetor designed with an
“internal” vacuum source such as...
0-1850; 0-3310; 0-6425; 0-7448.
Part No. 45-223
METERING PLATE
CONVERSION KITS
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