Air and Fuel
Circle Track Fuel Cells, Pumps & Carburetors for Racing Engines at JJ Motorsports
Optimize your circle track racing setup with high-quality air and fuel components from JJ Motorsports. Our selection includes carburetors, fuel pumps, intake manifolds, fuel cells, and more, designed for maximum power, efficiency, and reliability in late models, modifieds, and street stocks. These durable parts ensure optimal fuel delivery and engine performance under intense racing conditions.
Shop trusted brands like JAZ Products and Pro/Cam. Explore related categories such as circle track engines and components for power upgrades or circle track suspension and components for handling enhancements.
Top Circle Track Air and Fuel Products
- Hi-Volume Small Block Chevy Claimer Oil Pan 6qt Kit, LH Side Dipstick – High-volume 6qt oil pan kit with left-hand side dipstick for Small Block Chevy engines, ideal for circle track applications.
- JAZ 22 Gal. C/T Fuel Cell Man O' War Series 285-722-01 – Durable 22-gallon fuel cell with seamless polyethylene inner shell and steel outer container, designed for dirt late model and modified racing.
- Fuel Pump SBC 7.5psi Billet Aluminum # 9351 – Mechanical fuel pump for Small Block Chevy with 130 gph flow at 7.5 psi, billet aluminum construction, compatible with gasoline, E85, and methanol.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
Wehrs Fuel Cell Breather 6an WEHWM253-6
WEHRS MACHINE
MSRP: $30.99Now: $30.00Was: $30.99Fuel cell breathers are a critical safety component in any high-performance fuel system—they prevent pressure buildup that can compromise tank integrity and fuel system reliability during intense racing conditions. The Wehrs Fuel Cell Breather eliminates...WEHWM253-6- SKU:
- WEHWM253-6
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MFG Part #:
- WM253-6
MSRP: $30.99Now: $30.00Was: $30.99 -
On Sale
Wehrs Carb Adapt. 2BBl to 4BBl 1in Tall Slider WEHWM206SB
WEHRS MACHINE
MSRP: $100.99Now: $99.00Was: $100.99If you're upgrading from a 2-barrel carb to a square-bore 4-barrel setup, this adapter is essential for a clean, reliable transition without custom fabrication. The Wehrs 1-inch tall design maintains proper carb-to-manifold spacing while preserving fuel...WEHWM206SB- SKU:
- WEHWM206SB
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MFG Part #:
- WM206SB
MSRP: $100.99Now: $99.00Was: $100.99 -
On Sale
Wehrs Q-Jet Carb Adapter 1in Thick Straight Bore WEHWM10Q500SB
WEHRS MACHINE
MSRP: $70.99Now: $70.00Was: $70.99If you're running a Holley 2-barrel carb on a spread-bore intake manifold, this adapter is essential for proper fuel delivery and engine tuning. The Wehrs Q-Jet design eliminates gasket stack complications and gives you a solid, repeatable platform for...WEHWM10Q500SB- SKU:
- WEHWM10Q500SB
- Availability:
- Ships Same Business Day
- Weight:
- 1.87 LBS
- MFG Part #:
- WM10Q500SB
MSRP: $70.99Now: $70.00Was: $70.99 -
Rebuild Kit Gasoline 4bbl 750-850 CFM WCDKIT-4GW
WILLYS CARB
$67.99A properly rebuilt carburetor is the foundation of reliable fuel delivery and consistent engine performance. This master rebuild kit gives you everything needed to restore your Willy's 4-barrel to OEM specifications, eliminating lean stumbles, hard...WCDKIT-4GW- SKU:
- WCDKIT-4GW
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- KIT-4GW
$67.99 -
Rebuild Kit Alcohol 4bbl 750-850 CFM WCDKIT-4AW-NONS
WILLYS CARB
$56.99Keeping your Willy's 4-barrel carburetor in peak condition is essential for consistent performance and reliability on the track or at the strip. This master rebuild kit supplies all necessary seals, gaskets, and components to restore your 750–850 CFM...WCDKIT-4AW-NONS- SKU:
- WCDKIT-4AW-NONS
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- KIT-4AW-NONS
$56.99 -
Rebuild Kit Alcohol 4bbl 750-850 CFM WCDKIT-4AW
WILLYS CARB
$108.99If you're running alcohol fuel in a 4150-style carburetor, maintaining proper needle and seat wear is critical to consistent jetting and engine performance. This comprehensive rebuild kit ensures your carb delivers precise fuel metering across the RPM...WCDKIT-4AW- SKU:
- WCDKIT-4AW
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- KIT-4AW
$108.99 -
Adjustable Carb. Spacer WCD8850
WILLYS CARB
$359.99Precise carburettor control demands precision hardware. The Adjustable Carb. Spacer WCD8850 gives you the fine-tuning capability to dial in your air-fuel mixture and optimize throttle response without compromising structural integrity. Whether you're...WCD8850- SKU:
- WCD8850
- Availability:
- Ships Same Business Day
- Weight:
- 1.93 LBS
- MFG Part #:
- WCD8850
$359.99 -
Fuel Pressure Reg Belt Drive Alcohol WCD791
WILLYS CARB
$239.99If you're running a dedicated alcohol fuel system, precise pressure regulation is non-negotiable for consistent performance and component protection. This belt-drive regulator delivers stable fuel pressure across the 3-10 psi range, ensuring your fuel...WCD791- SKU:
- WCD791
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MFG Part #:
- WCD791
$239.99 -
Rebuild Kit Fuel Pressure Regulator WCD690
WILLYS CARB
$35.99Fuel pressure regulators are critical to maintaining consistent fuel delivery and engine performance across varying load conditions. A worn or degraded regulator compromises combustion efficiency and can lead to lean running conditions, hesitation, and...WCD690- SKU:
- WCD690
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- WCD690
$35.99 -
750 4BBL Gas Carb w/ 1.400 Venturi WCD64002
WILLYS CARB
$1,315.99The WCD64002 is purpose-built for circle track competition where consistent fuel delivery and responsive throttle control separate winners from the field. With 750 CFM capacity and mechanical secondary actuation, this carburetor delivers predictable...WCD64002- SKU:
- WCD64002
- Availability:
- Ships Same Business Day
- Weight:
- 13.10 LBS
- MFG Part #:
- WCD64002
$1,315.99 -
750 4BBL CNC Alcohol Carb W/ A1 Valve WCD64001
WILLYS CARB
$1,325.99The 750 4BBL CNC Alcohol Carb delivers precise fuel metering and responsive throttle control for dedicated alcohol-burning engines. CNC-machined construction ensures tight tolerances and repeatability between carburetors, critical for consistent...WCD64001- SKU:
- WCD64001
- Availability:
- Ships Same Business Day
- Weight:
- 13.25 LBS
- MFG Part #:
- WCD64001
$1,325.99 -
604 Crate Engine Total Perf Kit WCD604CRATE
WILLYS CARB
$1,499.99The 604 Crate Engine Total Perf Kit delivers a complete, ready-to-run solution for racers and engine builders who need consistent, reliable power without sourcing individual components. This comprehensive package includes everything required for...WCD604CRATE- SKU:
- WCD604CRATE
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 604CRATE
$1,499.99 -
4BBL HP Coated Carb Gas 406-430 WCD54502
WILLYS CARB
$1,444.99If you're building a high-displacement naturally aspirated engine in the 406–430 cubic inch range, this 4-barrel carburetor delivers the air-fuel metering precision you need for consistent power and throttle response. The 850 CFM capacity is engineered...WCD54502- SKU:
- WCD54502
- Availability:
- Ships Same Business Day
- Weight:
- 12.98 LBS
- MFG Part #:
- WCD54502
$1,444.99 -
604 Crate Engine Carb WCD50127
WILLYS CARB
$1,184.99The 604 Crate Engine Carb delivers the fuel metering precision and airflow capacity your crate engine demands, whether you're prepping for bracket racing or high-rpm street duty. This 750 CFM four-barrel carburetor is engineered specifically for 604...WCD50127- SKU:
- WCD50127
- Availability:
- Ships Same Business Day
- Weight:
- 13.06 LBS
- MFG Part #:
- WCD50127
$1,184.99 -
Throttle Return Spring Kit w/Stop 2bbl WCD251
WILLYS CARB
$42.99A reliable throttle return spring system is critical for predictable throttle response and safe engine operation—especially in high-performance and vintage applications where consistency matters. This dual-spring kit ensures positive throttle closure...WCD251- SKU:
- WCD251
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 251
$42.99 -
Throttle Return Spring Kit w/Stop 4bbl WCD250
WILLYS CARB
$44.99A reliable throttle return spring system is critical to safe engine operation—it ensures your throttle plate snaps back to idle position every time, eliminating the risk of hanging throttle or uncontrolled acceleration. This kit delivers dual-spring...WCD250- SKU:
- WCD250
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 250
$44.99 -
1in Carb Adapter Holley To Holley 3223
TRANS-DAPT
$136.99When transitioning from a 2-barrel Holley carburetor to a square-bore manifold, a quality adapter is essential to maintain proper fuel delivery and throttle response. This 1-inch aluminum adapter bridges the gap between incompatible mounting surfaces,...TRA3223- SKU:
- TRA3223
- Availability:
- Ships Same Business Day
- Weight:
- 2.57 LBS
- MFG Part #:
- 3223
$136.99 -
1in Alum Carb Spacer Holly/AFB 4 Hole 3211
TRANS-DAPT
$143.99A quality carburetor spacer is essential for optimizing fuel distribution and engine performance. The 1-inch Torque-Flow design elevates your intake manifold while creating a thermal barrier that reduces fuel vaporization and improves throttle response...TRA3211- SKU:
- TRA3211
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- 3211
$143.99Qty in Cart: 0Quantity:Price:$143.99Subtotal: -
Carburetor Spacer 2280
TRANS-DAPT
$63.99A carburetor spacer isolates your carb from engine heat and improves fuel atomization by creating optimal air-fuel mixture conditions—critical for consistent performance and reliability. The Carburetor Spacer 2280 delivers precise fitment with quality...TRA2280- SKU:
- TRA2280
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- MFG Part #:
- 2280
$63.99 -
Carburetor Spacer 2137
TRANS-DAPT
$67.99A quality carburetor spacer improves fuel atomization and enhances air velocity through your intake manifold, resulting in better throttle response and more consistent performance across your RPM range. The 1-inch thickness of the 2137 provides optimal...TRA2137- SKU:
- TRA2137
- Availability:
- Ships Same Business Day
- Weight:
- 1.84 LBS
- MFG Part #:
- 2137
$67.99
