Page 422 - 2021-22 Auto Performance_Circle Track
P. 422
Performance Model 2300 2bbl Carburetors
Holley 2300 Series Carburetors are
bowls and universal throttle levers.
Check sanctioning body’s rule book and
refer to the Holley performance catalog
or call for help in selecting the proper carburetor.
4150 HP Carburetors
-
tors set the standards by which all
competition carbs are judged. Built
secondaries and perform like the
-
tors at a considerably lower cost. Air
- tor pumps equipped with severe usage diaphragms, and have improved main metering circuitry.
Part No.
Description
HLY0-7448
350 CFM 2bbl.
HLY0-7448SA
350 CFM 2bbl., Shiny/Aluminum NEW!
HLY0-4412C
500 CFM 2bbl.
HLY0-4412CT
500 CFM 2bbl., Circle Track Specific, No Choke Mechanism
HLY0-4412SA
500 CFM 2bbl., Shiny/Aluminum NEW!
Primary Acc. Pump
Secondary Idle
Keith Dorton Signature Series 2bbl Carburetors
World-renowned engine builder Keith
build race-ready circle track racing car-
buretors.. All choke provisions have been
-
er valve blow-out protection, welded throttle lever
- ator pump nozzles, 30cc accelerator pumps with durable GFLT diaphragms, and large, 5/16" air cleaner mounting studs.
Part No.
* NASCAR approved
Description
Acc. Pump
System
Boosters
HLY0-80507-1*
390 CFM Gas
30cc
30cc
4-Corner
Straight-Leg
HLY0-80540-1
600 CFM Gas
30cc
30cc
4-Corner
Straight-Leg
HLY0-80541-1
650 CFM Gas
30cc
30cc
4-Corner
Straight Leg
HLY0-80528-1
750 CFM Gas
30cc
30cc
4-Corner
Down Leg
HLY0-80535-1
750 CFM Meth.
50cc
50cc
4-Corner
Down Leg
HLY0-80509-1*
830 CFM Gas
30cc
30cc
4-Corner
Down Leg
HLY0-80511-1*
830 CFM Gas
30cc
30cc
4-Corner
Annular
HLY0-80496-1
950 CFM Gas
30cc
30cc
4-Corner
Down Leg
HLY0-80498-1
950 CFM Meth.
50cc
50cc
4-Corner
Down Leg
Part No.
Aluminum Ultra XP
500 CFM 2bbl Carburetors
Description
Aluminum Ultra XP 4150 Carburetors
HLY0-80787-1
350 CFM 2bbl.
HLY0-80583-1
500 CFM 2bbl.
All-aluminum carburetors deliver nearly
50% weight savings compared to tradi-
tional units. Carburetors include deleted
choke tower, down-leg boosters, 20%
more fuel bowl capacity, clear-view sight
windows, 30cc accelerator pump and centered
-
Competition-proven, all-alumi-
-
er than traditional units. Gasoline
-
chanical secondaries, dual 30cc
accelerator pumps, 20% more fuel
bowl capacity, clear-view sight windows, four-corner idle system, and adjustable secondary link that allows 1:1 or progressive with black anodized metering blocks and booster inserts.
Part No.
Aluminum Ultra XP 4150 Methanol Carburetors
Description
HLY0-80802HBX
650 CFM Carburetor
HLY0-80803HBX
750 CFM Carburetor
HLY0-80804HBX
850 CFM Carburetor
Part No.
Description
HLY0-4412BKX
500 CFM 2bbl. Carburetor, Tumble Polished
HLY0-4412EX
500 CFM 2bbl. E85 Carburetor, Hard-Core Gray
HLY0-4412HBX
500 CFM 2bbl. Carburetor, Hard-Core Gray
Competition 4150 Carburetors
and secondary sides use metering
blocks with replaceable main jets, and carbs have no chokes. Equipped with me- chanical secondaries and annular boosters.
Primary Secondary Idle
methanol carburetors use light-
weight aluminum construction to
-
FE-coated throttle shafts, dual
50cc accelerator pumps, 20%
more fuel bowl capacity, clear-
view sight windows, four-corner
idle system, and .150" stainless needle and seat assemblies. booster inserts.
Part No. Description
Part No. Description Acc. Pump Acc. Pump
System
HLY0-9379
750 CFM Gas
30cc
30cc
Four-Corner
HLY0-9381
830 CFM Gas
30cc
30cc
Four-Corner
HLY0-9380
850 CFM Gas
30cc
50cc
Four-Corner
HLY0-80833HBX
750 CFM 4bbl. Carburetor NEW!
HLY0-80835HBX
950 CFM 4bbl. Carburetor
420 TRACK
CIRCLE 2021-22
