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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Moroso Holley 4150 Slip Link 1:1 MOR65444
MOROSO
$22.99If you're running a Holley 4150 carb and need precise throttle response with synchronized primary and secondary opening rates, this slip link delivers the 1:1 ratio control you're after. Whether you're tuning for consistency on the dyno or dialing in...MOR65444- SKU:
- MOR65444
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 65444
$22.99 -
Moroso Jet Extension Brass 5/16-32 Thread Holley Carburetor 2 Pack 65441
MOROSO
$31.99Fuel starvation during aggressive acceleration or high-G cornering can lean out your mixture and kill power when you need it most. Moroso's Jet Extensions reposition your fuel jets deeper into the bowl, maintaining consistent fuel delivery under extreme...MOR65441- SKU:
- MOR65441
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 65441
$31.99 -
Moroso brass jet extensions for Holley carburetors 1/4-32 thread 2 per pack 65440
MOROSO
$25.99Fuel starvation during hard acceleration can cost you consistency on the track and reliability in the shop. These Moroso jet extensions reposition your fuel jets deeper into the bowl, maintaining steady fuel delivery under high-performance demands...MOR65440- SKU:
- MOR65440
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 65440
$25.99 -
Moroso Oval Track Float Kit MOR65432
MOROSO
$48.99Fuel delivery consistency is critical in oval track racing, and float calibration directly impacts your engine's performance under high-G cornering loads. The Moroso Oval Track Float Kit delivers precision-engineered floats specifically designed to...MOR65432- SKU:
- MOR65432
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- 65432
$48.99 -
Moroso Fuel Pump Plate - Billet BBC- Ford & Mopar 65396
MOROSO
$32.99Whether you're running a big block engine with the original fuel pump blockoff location exposed or transitioning to an alternative fuel system, the Moroso Billet BBC Fuel Pump Plate seals that opening cleanly and securely. This CNC-machined billet...MOR65396- SKU:
- MOR65396
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- MFG Part #:
- 65396
$32.99 -
Moroso Fuel Pump Plate - Billet SBC 65395
MOROSO
$32.99If you're running a carbureted Small Block Chevy without a mechanical fuel pump, you need a reliable blockoff solution that won't leak or fail under pressure. The Moroso Billet SBC Fuel Pump Plate eliminates the factory fuel pump cavity with...MOR65395- SKU:
- MOR65395
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MFG Part #:
- 65395
$32.99 -
Moroso SB Chevy F.P. Block-Off 65393
MOROSO
$22.99When you're running a carbureted or mechanical fuel system on your small block Chevy, eliminating the factory fuel pump port is essential for a clean engine bay and preventing fuel leaks. This Moroso block-off plate provides a simple, bolt-on solution...MOR65393- SKU:
- MOR65393
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- MFG Part #:
- 65393
$22.99 -
Moroso BB Chevy F.P. Block-Off 65392
MOROSO
$22.99When you're converting to fuel injection or running a carbureted setup, eliminating the factory fuel pump cavity prevents vacuum leaks and maintains clean engine bay aesthetics. This Moroso block-off plate seals the opening with precision-engineered...MOR65392- SKU:
- MOR65392
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 65392
$22.99 -
Moroso Sb Chevy F.P. Block-Off 65391
MOROSO
$22.99When you're running a carbureted small-block Chevy or converting to a different fuel system, you need a clean, reliable way to seal off the factory fuel pump port. The Moroso SB Chevy F.P. Block-Off eliminates potential leak points and gives your engine...MOR65391- SKU:
- MOR65391
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 65391
$22.99 -
Moroso In-Line Fuel Filter 3/8" NPT Fittings 40 Micron Stainless Steel Element 65231
MOROSO
$116.99Contaminated fuel is the silent killer of high-performance engines—dirt and debris in your fuel system lead to clogged injectors, worn fuel pumps, and erratic engine behavior. The Moroso In-Line Fuel Filter with its 40-micron stainless steel element...MOR65231- SKU:
- MOR65231
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- MFG Part #:
- 65231
$116.99 -
Moroso Inline Fuel Filter 6.5in 40 Micron Stainless Steel -8AN Fittings 65230
MOROSO
$120.99Fuel system contamination degrades injector spray patterns, increases wear on fuel pumps, and compromises engine performance—especially critical in high-demand racing and street applications. The Moroso Inline Fuel Filter removes particulates down to 40...MOR65230- SKU:
- MOR65230
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- MFG Part #:
- 65230
$120.99 -
Moroso Holley Throttle Stop 65042
MOROSO
$49.99Precise idle control is essential for consistent carburator performance, whether you're tuning on the dyno or dialing in street-strip applications. The Moroso Holley Throttle Stop gives you adjustable command over your 4150 carb's throttle plate...MOR65042- SKU:
- MOR65042
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MFG Part #:
- 65042
$49.99 -
Moroso 1/2in Wood Carb Spacer 65015
MOROSO
$54.99A carburetor spacer is a critical component for optimizing fuel distribution and tuning flexibility in your engine's induction system. The Moroso 1/2in wood spacer provides thermal isolation between your carburetor and intake manifold, reducing fuel...MOR65015- SKU:
- MOR65015
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 65015
$54.99 -
Moroso 1/2in Billet Carb Spacer 64985
MOROSO
$70.99A quality carburetor spacer is essential for optimizing your intake manifold's air velocity and improving fuel atomization—directly impacting throttle response and overall engine efficiency. The Moroso 1/2in Billet Carb Spacer delivers precision...MOR64985- SKU:
- MOR64985
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- 64985
$70.99 -
Moroso 1in Billet Carb Spacer 64981
MOROSO
$98.99A carburetor spacer is essential for optimizing fuel distribution, improving engine response, and lowering under-hood temperatures. The Moroso 1-inch billet spacer provides a precision-engineered solution that increases the distance between your carb and...MOR64981- SKU:
- MOR64981
- Availability:
- Ships Same Business Day
- Weight:
- 1.68 LBS
- MFG Part #:
- 64981
$98.99 -
Moroso 1in Alum. Carb. Spacer 64980
MOROSO
$82.99A carburetor spacer is a straightforward way to improve intake manifold sealing and optimize fuel distribution across your engine's cylinders. The Moroso 1-inch aluminum spacer adds thermal isolation between your carb and manifold, reducing heat soak...MOR64980- SKU:
- MOR64980
- Availability:
- Ships Same Business Day
- Weight:
- 1.73 LBS
- MFG Part #:
- 64980
$82.99 -
Moroso 2in Alum. Carb. Spacer 64970
MOROSO
$103.99A carburetor spacer creates critical distance between your carb and intake manifold, allowing for improved airflow dynamics and more consistent fuel atomization across all cylinders. The Moroso 2-inch aluminum spacer is cast from premium material to...MOR64970- SKU:
- MOR64970
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- MFG Part #:
- 64970
$103.99 -
Moroso Phenolic 1/2in 4 Hole 64943
MOROSO
$57.99A quality carburetor spacer does more than fill a gap—it optimizes fuel atomization, improves heat management, and can deliver measurable gains in throttle response and mid-range torque. The Moroso Phenolic 1/2in 4 Hole spacer is engineered from phenolic...MOR64943- SKU:
- MOR64943
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 64943
$57.99 -
Moroso Phenolic 1in Open 64940
MOROSO
$56.99Phenolic carburetor spacers are essential for serious carbureted builds—they provide thermal insulation that keeps fuel cooler and reduces vapor lock while maintaining consistent jetting performance under sustained load. The Moroso 1-inch open design...MOR64940- SKU:
- MOR64940
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MFG Part #:
- 64940
$56.99 -
Moroso Phenolic 1in 4 Hole 64930
MOROSO
$62.99A quality carburetor spacer is essential for optimizing fuel distribution, reducing heat transfer to the intake manifold, and maintaining consistent air-fuel ratios under sustained performance conditions. The Moroso Phenolic 1in 4 Hole spacer delivers...MOR64930- SKU:
- MOR64930
- Availability:
- Ships Same Business Day
- Weight:
- 1.52 LBS
- MFG Part #:
- 64930
$62.99
