Performance Model 2300 2BBL Carburetors
4150 HP Carburetors Holley Pro-Series HP Carburetors set the standards by which all competition carbs are judged. Built only for all-out per- formance, Pro-Series 4150 Carbu- retors have mechanical secondaries and perform like the more expensive ³PRGL¿HG´FDUEXUHWRUVDWDFRQVLGHUDEO\ lower cost. Air horn and choke towers have
Holley 2300 Series Carburetors are available in 350 or 500 CFM versions ZLWKPDQXDOFKRNHVFHQWHUKXQJÀRDW 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. Part No. Description HLY0-7448 350 CFM 2bbl HLY0-4412C 500 CFM 2bbl HLY0-4412CT 500 CFM 2bbl, Circle Track Specific, No Choke Mechanism Keith Dorton Signature Series 2BBL Carburetors W\SHDLUEOHHGV+3PHWHULQJEORFNVORZSUR¿OHWKURWWOHSODWH screws, “straight-type” accelerator pump nozzles, 30cc acceler- ator pumps with durable GFLT diaphragms, and large, 5/16" air cleaner mounting studs. Part No. Description HLY0-80787-1 350 CFM 2bbl HLY0-80583-1 500 CFM 2bbl Aluminum Ultra XP 500 CFM 2BBL Carburetors 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 cen- WHUHGDLUFOHDQHUÀDQJH&KRRVHIURPJDVROLQHRU (FDOLEUDWHGFDUEXUHWRUVZLWKWXPEOHSROLVKHG¿QLVKZLWKEODFN PHWHULQJEORFNDQGEDVHSODWHRUKDUGFRUHJUD\¿QLVKZLWKEODFN metering block and base plate. 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 World renowned engine builder, Keith Dorton uses his technical expertise to build race ready, out-of-the-box Carbu- retors for circle track racing only. All choke provisions have been deleted for maximum air ÀRZ&DUEVKDYHSRZHUYDOYHEORZRXWSURWHF - tion, welded throttle lever assemblies, screw-in
EHHQUHPRYHGWRLPSURYHDLUÀRZYHQWXULVHFWLRQVKDYHEHHQ PRGL¿HGDQGWKHWKURXJKKROHVKDYHEHHQPDFKLQHGWR 3UR6HULHVFDUEVKDYHEHHQ¿WWHGZLWK'RPLQDWRUIXHO ERZOVKLJKÀRZSRZHUYDOYHVDFFHOHUDWRUSXPSVHTXLSSHGZLWK severe usage diaphragms, and have improved main metering circuitry.
Primary Acc. Pump
Secondary Acc. Pump
Idle System Boosters
Part No.
Description
HLY0-80507-1* 390 CFM Gas 30cc HLY0-80540-1 600 CFM Gas 30cc
30cc 4-Corner Straight-Leg 30cc 4-Corner Straight-Leg 30cc 4-Corner Down Leg 50cc 4-Corner Down Leg 30cc 4-Corner Down Leg 30cc 4-Corner Annular 30cc 4-Corner Down Leg 50cc 4-Corner Down Leg 30cc 4-Corner Straight Leg
HLY0-80528-1 750 CFM Gas HLY0-80535-1 750 CFM Meth.
30cc 50cc
HLY0-80509-1* 830 CFM Gas 30cc HLY0-80511-1* 830 CFM Gas 30cc HLY0-80496-1 950 CFM Gas 30cc HLY0-80541-1 650 CFM Gas 30cc * NASCAR approved Aluminum Ultra XP 4150 Carburetors Competition-proven, all-alumi- HLY0-80498-1 950 CFM Meth. 50cc
num carburetors are 4.5 lbs. light- er than traditional units. Gasoline 4bbl carburetors include mechani- cal secondaries, dual 30cc accelerator pumps, 20% more fuel bowl capacity, clear-view
sight windows, four-corner idle system, and adjustable sec- ondary link that allows 1:1 or progressive throttle activation. All FDUEXUHWRUVIHDWXUHKDUGFRUHJUD\¿QLVKZLWKEODFNDQRGL]HG metering blocks and booster inserts. Part No. Description HLY0-80802HBX 650 CFM Carburetor HLY0-80803HBX 750 CFM Carburetor HLY0-80804HBX 850 CFM Carburetor Aluminum Ultra XP 950 CFM Methanol Carburetor HLY0-80835HBX
Ideal for late models, 950 CFM 4150 methanol carburetor uses lightweight aluminum construc- tion to offer 4.5 lbs. in weight
Competition 4150 Carburetors Holley Competition 4150 Series Carbs are built for maximum performance. Primary and secondary sides use metering blocks with replaceable main jets, and carbs have no chokes. Equipped with mechanical secondaries and annular boosters.
savings. Carburetor incorporates PTFE-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 DVVHPEOLHV+DUGFRUHJUD\¿QLVKZLWKEODFNDQRGL]HGPHWHULQJ blocks and booster inserts.
Primary Acc. Pump
Secondary Acc. Pump
Idle System
Part No.
Description
HLY0-9379 750 CFM Gas HLY0-9381 830 CFM Gas HLY0-9380 850 CFM Gas
30cc 30cc 30cc
30cc 30cc 50cc
Four-Corner Four-Corner Four-Corner
401
2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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