Page 425 - 2021-22 Auto Performance_Circle Track
P. 425
Accelerator Pump Discharge Nozzles
type and tube-type nozzles were originally used on models - els, were engineered to combat “pump pull-over”, which occurs Anti-pullover sold individually.
Standard Main Jets
Holley main jets are threaded for ease of instal-
Jet Hole No. Size
Jet Hole No. Size
Jet Hole No. Size
Jet Hole No. Size
HLY40
.040"
HLY60
.060"
HLY77
.0855"
HLY95
.1165"
HLY44
.044"
HLY61
.060"
HLY78
.087"
HLY96
.1195"
HLY45
.045"
HLY62
.061"
HLY79
.089"
HLY97
.121"
HLY46
.046"
HLY63
.062"
HLY80
.089"
HLY98
.124"
HLY47
.047"
HLY64
.064"
HLY81
.092"
HLY99
.126"
HLY48
.048"
HLY65
.065"
HLY82
.094"
HLY100
.1285"
HLY49
.048"
HLY66
.066"
HLY83
.0975"
HLY101
.126"
HLY50
.049"
HLY67
.0663"
HLY85
.0985"
HLY102
.128"
HLY51
.050"
HLY68
.0685"
HLY86
.100"
HLY103
.130"
HLY52
.052"
HLY69
.0693"
HLY87
.1015"
HLY104
.134"
HLY53
.052"
HLY70
.0735"
HLY88
.1025"
HLY105
.137"
HLY54
.053"
HLY71
.075"
HLY89
.1045"
HLY106
.141"
HLY55
.054"
HLY72
.0755"
HLY90
.1055"
HLY107
.145"
HLY56
.055"
HLY73
.079"
HLY91
.1085"
HLY108
.147"
HLY57
.056"
HLY74
.080"
HLY92
.110"
HLY109
.150"
HLY58
.057"
HLY75
.082"
HLY93
.1125"
HLY110
.156"
HLY59
.058"
HLY76
.084"
HLY94
.1155"
Hole Size
Straight Type Part No.
Tube Type Part No.
Anti-Pullover Part No.
.018"
HLY121-118
—
—
.021"
HLY121-121
—
—
.025"
HLY121-125
HLY121-25
HLY121-225
.028"
HLY121-128
HLY121-28
HLY121-228
.031"
HLY121-131
HLY121-31
HLY121-231
.032"
HLY121-132
—
—
.035"
HLY121-135
HLY121-35
—
.037"
HLY121-137
HLY121-37
HLY121-237
.040"
HLY121-140
HLY121-40
HLY121-240
.042"
HLY121-142
HLY121-42
—
.045"
HLY121-145
HLY121-45
—
.047"
HLY121-147
—
—
.050"
HLY121-150
—
—
Accelerator Discharge Screws
Part No.
50cc Accelerator Pump Conversion Kit HLY20-11
Description
Alcohol Jets
Two per card.
Note: All sizes shown are for reference use only. Actual control of size is by flow check. In all instances, a higher stamped number indicates a greater average flow rate. Do not drill or damage the jet metering orifice. Change jets to meet specific requirements.
HLY121-6
Solid Discharge Nozzle Screw, for Nozzles up to .037" NEW!
HLY121-7
Hollow Discharge Nozzle Screw, for Nozzles .040" and Larger
Kit more than doubles the capacity of accelerator pump system on Holley four- barrel carburetors.
Accelerator Pump Cam Assortment HLY20-12
Tailor pump performance to individu- al engine requirements by selecting the proper cam.
Accelerator Pump Arms
Jet No.
Hole Size
Jet No.
Hole Size
Jet No.
Hole Size
Jet No.
Hole Size
HLY132
.132"
HLY146
.146"
HLY158
.158"
HLY192
.192"
HLY136
.136"
HLY148
.148"
HLY160
.160"
HLY196
.196"
HLY138
.138"
HLY150
.150"
HLY164
.164"
HLY200
.200"
HLY140
.140"
HLY152
.152"
HLY168
.168"
HLY180
.180"
HLY142
.142"
HLY154
.154"
HLY172
.172"
HLY184
.184"
HLY144
.144"
HLY156
.156"
HLY176
.176"
HLY188
.188"
Part No.
Description
HLY20-78
HLY20-114
Alcohol Jet Kit HLY36-201 -
carrying case.
Main Jet Removal Tool
HLY26-68
Removes Holley jets without damage.
HLY20-78
Models 2300/4150/4160, Plastic
HLY20-114
30cc Pumps, Metal
Jet Assortment Kit
HLY36-181
The professional way to track-tune
a carburetor for top performance. Kit contains two each of 36 different jet sizes, tic case to keep them separated for easy access.
TRACK
CIRCLE 2021-22
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