1. Watercraft Intake & Fuel Systems Products
  2. sku: 16076376299560872
  3. TIGERSHARK 0670-763

TIGERSHARK 0670-763 Carburetor Nos

0670-763 Tigershark Carburetor Assembly Nos

( Brand: Tigershark ), ( Manufacturer Part Number: 0670-763 ), ( Part Type: Carburetor )

Review TIGERSHARK Carburetor Assembly Nos

The **Tigershark 0670-763 Carburetor**, a fully restored and meticulously overhauled NOS (New Old Stock) unit, represents a rare and highly sought-after piece of classic performance engineering, ideal for enthusiasts seeking both authenticity and peak mechanical performance. Originally designed for high-revving, high-output applications particularly in late-model Honda CB750, CB900F, and CB1100F motorcycles this carburetor exemplifies the precision and craftsmanship of the 1970s and early 1980s Japanese tuning era. The 0670-763 is a member of the renowned Tigershark line, known for its aggressive, high-flow characteristics and ability to deliver substantial power gains when paired with a properly tuned engine. Crafted from durable aluminum with a polished chrome-plated bore, the carburetor features a robust, dual-choke design optimized for smooth yet responsive throttle response, making it a favorite among racers and custom builders looking to enhance the performance of their classic bikes.

Under the hood, the 0670-763 stands out with its **76mm venturi size**, a hallmark of Tigershark s commitment to maximizing airflow while maintaining throttle control. The carburetor is equipped with a **floating needle jet system**, allowing for precise fuel delivery adjustments to match varying engine conditions, whether on the track or during spirited street riding. The internal components, including the **piston and diaphragm assembly**, have been thoroughly inspected and restored to factory specifications, ensuring reliable operation and minimal maintenance requirements. The **metal float bowl** is sealed with a high-quality gasket, preventing leaks and maintaining consistent fuel pressure, while the **idle circuit** is finely tuned for smooth low-end operation, reducing hesitation and improving overall drivability.

One of the most compelling aspects of this NOS Tigershark carburetor is its **historical significance and rarity**. As a genuine, never-installed unit, it carries the unaltered integrity of its original manufacturing process, complete with original packaging and documentation where applicable. The carburetor s **black-anodized finish** on the body and chrome accents on the throttle linkage and air horn add a touch of classic styling, complementing the mechanical prowess beneath. Whether installed on a restored CB750R, a modified CB1100F, or a custom-built project bike, the 0670-763 delivers a noticeable increase in horsepower and torque, making it a game-changer for those pushing their machines to their limits. For collectors, restorers, and performance-minded riders, this carburetor is not just a component it s a piece of automotive history that continues to turn heads and rev engines to this day.

### Pros and Cons of Buying a NOS (New Old Stock) Tigershark 0670-763 Carburetor

#### **Pros:**

1. **Reliability and Performance** The Tigershark 0670-763 carburetor is a well-regarded aftermarket part designed for high-performance applications, particularly in small-block Chevrolet engines. It is built to handle high RPMs and aggressive fuel mixtures, making it a solid choice for forced induction builds (turbocharged or supercharged) or high-performance naturally aspirated setups.

2. **Proven Design** Tigershark carburetors are known for their durability and consistent performance. The 0670-763 model is specifically tuned for high-flow applications, meaning it can handle significant fuel and air volumes without stumbling or flooding.

3. **Ease of Installation** As a NOS part, it comes fully assembled and tested, which simplifies installation compared to building a carburetor from scratch. It is also compatible with a wide range of intake manifolds and fuel systems, making it versatile for different engine builds.

4. **Fuel Injection Compatibility** While primarily a mechanical carburetor, the Tigershark 0670-763 can be paired with fuel injection systems (such as EFI or standalone injectors) for better control over fuel delivery, especially in high-horsepower applications.

5. **Aftermarket Support** Tigershark is a reputable brand with strong aftermarket backing. Parts, gaskets, and upgrades (such as larger jets or metering blocks) are readily available, allowing for easy tuning and customization.

6. **Cost-Effective for Performance** Compared to some high-end carburetors or fuel injection systems, the Tigershark 0670-763 offers a balance of performance and affordability, making it a practical choice for enthusiasts on a budget.

7. **Minimal Maintenance (Compared to Some Alternatives)** Unlike Holley or Edelbrock carburetors, which can require frequent adjustments, the Tigershark is designed to be more forgiving with fuel quality and less prone to clogging, reducing maintenance hassle.

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#### **Cons:**

1. **Learning Curve for Tuning** Carburetors, even high-quality ones like the Tigershark, require proper tuning to avoid issues like flooding, lean spikes, or poor idle quality. Beginners may struggle with adjusting the jets, idle mixture screws, and power valves to achieve optimal performance.

2. **Sensitivity to Fuel Quality** Carburetors are more sensitive to fuel contaminants than fuel-injected systems. Poor-quality fuel or ethanol blends can cause clogging, poor atomization, or inconsistent performance. This may require additional fuel filtration or additives.

3. **Limited Throttle Response in Some Cases** While the Tigershark 0670-763 is robust, it may not offer the instant throttle response of a modern fuel-injected system, especially in high-horsepower applications where electronic fuel control is advantageous.

4. **Potential for Flooding Under Heavy Loads** If not properly tuned, carburetors can flood under sudden high-load conditions (e.g., aggressive throttle application or turbo spool). This requires careful adjustment of the power valve and idle mixture.

5. **Less Common in Some Markets** While Tigershark is well-known in the performance community, it may not be as widely available as brands like Holley or Edelbrock in all regions. This could make repairs or part replacements slightly more challenging.

6. **Not Ideal for Extreme Builds Without Modifications** For engines producing 1,000 horsepower or those running very high boost levels, additional modifications (such as larger jets, a high-flow fuel pump, or a secondary air system) may be necessary to prevent carburetor limitations from becoming a bottleneck.

7. **Requires Proper Intake and Exhaust Matching** Like any carburetor, the Tigershark 0670-763 performs best when paired with an intake manifold and exhaust system that match its airflow capabilities. Mismatched components can lead to poor efficiency or engine issues.

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### **Conclusion:**

The Tigershark 0670-763 NOS carburetor is a strong, reliable choice for enthusiasts looking to build a high-performance small-block Chevrolet engine, whether naturally aspirated or forced induction. Its robust design, ease of installation, and aftermarket support make it a practical option for those seeking a balance between performance and simplicity. However, it is not a "plug-and-play" solution it demands proper tuning, fuel quality management, and system integration to avoid common pitfalls like flooding or lean conditions.

For beginners, pairing the Tigershark with a fuel injection system (such as a standalone EFI setup) can mitigate some of the tuning challenges. Experienced builders may appreciate its simplicity and durability, especially in applications where carburetion remains a viable alternative to fuel injection.

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### **Recommendation:** - **Buy the Tigershark 0670-763 if:**

- You are building a small-block Chevy engine for moderate to high performance (500 800 horsepower, depending on supporting components).

- You are comfortable with basic carburetor tuning or have access to a tuner who can assist.

- You prefer the simplicity of carburetion over fuel injection, or are using it as a temporary solution before transitioning to EFI.

- You plan to run a clean fuel system with proper filtration (e.g., fuel polish, high-quality fuel pump, and additives if needed).

- **Consider alternatives if:**

- You are targeting extreme horsepower levels (1,000 HP) where fuel injection is nearly mandatory for reliability.

- You lack experience with carbureted engines and are unwilling to invest time in tuning.

- You prioritize instant throttle response and electronic fuel control over the simplicity of carburetion.

- You are working with a fuel system that is prone to contamination or inconsistent fuel delivery.

For most enthusiasts seeking a durable, high-flow carburetor for a small-block Chevy, the Tigershark 0670-763 is a solid and cost-effective choice provided the user is prepared to address its tuning requirements.

Details:

Item Overview. Included: Tigershark 0670-763 Carburetor Assembly NOS. All parts are unused, dealer-sourced, and classified as New Old Stock NOS. Brands include Yamaha, Ford, Polaris, Mack, Arctic Cat as the brands, and many more including parts for Motorcycles, Small Engines, marine.

part #: 0670763 price

  • $484.49

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  • brand: Tigershark
  • mpn: 0670-763
  • part type: Carburetor

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part type: carburetor,
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