Proform Vacuum Advance Lock Out - Plastic - GM HEI Distributors - Each 67022C

Proform Vacuum Advance Lock Out - Plastic - GM HEI Distributors - Each

The Proform Vacuum Advance Lock Out is a high-quality plastic component designed specifically for GM HEI distributors. This product is ideal for automotive enthusiasts, DIYers, and professional mechanics looking to enhance the performance of their ignition systems. By locking out the vacuum advance, this device helps to ensure consistent timing under various driving conditions, making it a valuable addition to any performance engine setup.

Manufactured by Proform, a trusted name in automotive performance parts, this vacuum advance lock out is built to meet the demands of both street and track applications. Whether you are tuning your vehicle for better responsiveness or simply looking to replace a worn-out part, this product delivers reliability and ease of installation.

Key features

• Constructed from durable plastic for long-lasting performance.
• Designed specifically for GM HEI distributors.
• Helps maintain consistent ignition timing by locking out vacuum advance.
• Easy to install with basic hand tools.
• Ideal for performance tuning and racing applications.
• Lightweight design contributes to overall vehicle efficiency.

Technical details

• Material: Plastic
• Application: GM HEI distributors
• Type: Vacuum advance lock out
• Pack size: Sold individually

Applications / fitment

This vacuum advance lock out is typically used in performance vehicles where ignition timing consistency is crucial.

• Suitable for street performance cars.
• Ideal for racing applications.
• Compatible with modified engines requiring precise timing control.
• Applicable in various GM vehicle models with HEI distributors.

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.
• Expertise in automotive performance parts to assist your needs.

Frequently asked questions

What is a vacuum advance lock out?

A vacuum advance lock out is a device that prevents the vacuum advance mechanism in an ignition distributor from adjusting timing based on engine load, ensuring fixed ignition timing for improved performance.

How do I install the Proform Vacuum Advance Lock Out?

The installation involves removing the distributor cap, locating the vacuum advance mechanism, and securing the lock out in place. Basic hand tools are generally sufficient for this process.

Is this product compatible with all GM HEI distributors?

While designed specifically for GM HEI distributors, it's advisable to check compatibility with your specific model to ensure proper fitment.

Will using this lock out affect my vehicle's drivability?

Yes, locking out the vacuum advance can improve performance but may affect drivability, especially at low RPMs. It's recommended for performance applications where consistent timing is desired.

What maintenance is required for this product?

Minimal maintenance is required; however, regular inspections are advised to ensure it remains securely attached and free from debris.