Carburetor Main Bodies
Circle Track Race Car Carburetor Main Bodies at JJ Motorsports
Replace or upgrade your circle track race car's carburetor with premium main bodies from JJ Motorsports, featuring high-flow 750 CFM designs for maximum horsepower and throttle response in high-RPM racing conditions. These billet and aluminum main bodies are built for Holley 4150/4160 carbs, delivering superior fuel atomization and durability for dirt track, oval, and stock car setups, helping you achieve podium finishes with consistent power delivery.
Shop top brands like Holley and Proform for race-proven reliability. Whether you're refreshing a worn carb or building a new one, these main bodies pair perfectly with our rebuild kits and jets for a complete, track-ready setup.
Top Circle Track Carburetor Main Bodies
- 750 HP Aluminum Main Body 134-300SA – Lightweight aluminum 750 CFM HP main body; down-leg boosters for superior signal and atomization.
- 750CFM Carburetor Main Body PFM67217 – Precision billet 750 CFM main body; optimized venturi and metering for circle track power.
- 750CFM HP Main Body Retro-Fit Kit HLY134-300C – Chrome HP main body retro-fit kit; converts standard 4150 to full HP specs.
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!
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Holley 750 HP Alm Main Body 134-300SA
HOLLEY
$247.45If you're running a Holley 4-barrel carb on your engine, this HP conversion main body unlocks genuine performance gains without replacing your entire carburetor. The 750 CFM rating delivers improved fuel atomization and flow characteristics, making it an...HLY134-300SA- SKU:
- HLY134-300SA
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
$247.45 -
Proform 750CFM Carburetor Main Body 67217
PROFORM
$222.95If you're running a street carburetor and need the flow capacity for serious performance, this Proform 750CFM main body swap is your direct path to higher horsepower without replacing your entire carb. The annular booster design maximizes fuel...PFM67217- SKU:
- PFM67217
- Availability:
- Ships Same Business Day
- Weight:
- 3.07 LBS
- MFG Part #:
- 67217
$222.95 -
Proform Carburetor Main Body - 850CFM 67107C
PROFORM
$211.95If you're running a street carburetor and need genuine performance gains, this Proform main body unlocks the full potential of 850 CFM Holley carburetors. The conversion from street to performance trim eliminates restrictions and allows for precise fuel...PFM67107C- SKU:
- PFM67107C
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MFG Part #:
- 67107C
$211.95 -
Holley 750CFM HP Main Body Retro-Fit Kit 134-300C
HOLLEY
$251.95If you're running a Holley 4150 carb and want to unlock higher airflow capacity, this retrofit kit eliminates the need for a complete carburetor swap. The HP main body upgrade transforms your existing 750 CFM carburetor into a higher-performance unit...HLY134-300C- SKU:
- HLY134-300C
- Availability:
- Ships Same Business Day
- Weight:
- 5.39 LBS
- MFG Part #:
- 134-300C
$251.95 -
Proform Carburetor Main Body - 950CFM 67108C
PROFORM
$222.95If you're running a street carburetor on your performance engine, you're leaving power on the table. The Proform 950CFM Main Body transforms your existing Holley carb into a dedicated performance unit, delivering the fuel atomization and flow your engine...PFM67108C- SKU:
- PFM67108C
- Availability:
- Ships Same Business Day
- Weight:
- 3.03 LBS
- MFG Part #:
- 67108C
$222.95 -
Proform Carburetor Main Body - 4777 & 4779 67100C
PROFORM
$158.95If you're running a street carburetor on your performance build, you're leaving power on the table. This Proform main body conversion kit transforms your stock 650-800 CFM Holley 4150 into a race-calibrated powerhouse by upgrading the core fuel delivery...PFM67100C- SKU:
- PFM67100C
- Availability:
- Ships Same Business Day
- Weight:
- 3.68 LBS
- MFG Part #:
- 67100C
$158.95
