THUNDERMINGO 2-Barrel Carburetor for Dodge Chrysler 318/273 V8 — High-Top BBD, Manual Choke

This heavy-duty zinc-alloy carburetor is built to match original Carter-style high-top BBD dimensions and mounting points, giving classic V8 drivers a reliable alternative to worn or leaky factory carbs. It’s engineered for straightforward installation on 273 and 318 cubic-inch V8 engines and comes adjusted to original baseline settings; final tuning for mixture, idle and float may be needed to suit your engine’s condition and cam/tune setup.

Will this carburetor physically fit my 273 or 318 engine?

Yes — the THUNDERMINGO 2-barrel is designed to replace factory Carter/High Top BBD units used on Dodge, Chrysler and Plymouth 273 and 318 V8s produced in the 1966–1973 era, and compatible with many 1967–1980 318 applications. Confirm flange bolt spacing and intake bore sizes against your manifold before buying.

• Bolt hole spacing: 82mm × 47.5mm (center to center)
• Intake-side inner diameter: 36.5mm
• Choke air horn inner/outer diameters: 62mm / 66mm
• Venturi diameter: 30mm
• Replaces part numbers such as 8211S, 14-161, 4113, Holley 2280, and others

How does the manual choke version affect cold starts and drivability?

The manual choke gives the driver direct control over enrichment during engine warm-up. It’s simple, dependable and preferred on many older vehicles where an automatic choke is either hard to source or undesirable for tuning consistency.

• Manual choke lever for on-demand enrichment
• Baseline adjustments set at the factory; final tuning recommended
• Stable idle once choke is opened and mixture set correctly
• Works well with original intake manifolds and period ignition timing

What materials and build details ensure long-term reliability?

Constructed from a heavy-duty zinc alloy, the THUNDERMINGO carburetor resists corrosion and maintains dimensional stability under heat cycles. Critical components are precision cast and assembled, then tested and adjusted to deliver a consistent baseline performance out of the box.

• Heavy-duty zinc-alloy body for durability
• Precision-machined throttle and venturi passages
• Factory-set float, idle and power needle starting positions
• Comprehensive replacement for worn or damaged original carbs

What adjustments should I make after installation?

Because older engines vary in wear and setup, THUNDERMINGO recommends a few primary adjustments to achieve proper idle and mixture. These are simple tweaks most home mechanics or tuners can perform with basic tools.

• Set throttle idle screw to about 1-1/4 turns off the stop pin
• Set idle mixture needle one full turn off the seat as a starting point
• Set power (main) mixture needle one full turn off the seat
• Fine-tune mixture and float levels while observing idle quality and plug condition

Who is this for? The THUNDERMINGO 2-barrel BBD manual-choke carburetor suits classic car and truck owners, restorers, and mechanics who need a faithful, robust replacement for worn Carter-style carbs on Dodge, Chrysler and Plymouth 273/318 V8s. If you restore period-correct drivability, perform engine rebuilds, or simply want a durable, serviceable carb with straightforward adjustments, this unit provides a practical, factory-dimensioned solution. Always verify physical fit and compatibility with your manifold and engine model before purchasing.