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Holley 26-36

Power Valve Plug Race Only

Holley 26-36

Part Number: 510-26-36

Power Valve Plug
  • Race Only
  • $5.51
    Made In USA
    Holley 26-36 Power Valve Plug Race Only $5.51

    Holley 26-36 Details

    Power Valve Plug

  • Blocks Power Valve Circuit
  • 0.5-28 Power Valve Thread
  • 10-Pack Kit

  • Specifications:

    Gaskets Included
    Power Valve Type
    Sold individually
    Thread Size (in.)
    Manufacturer's Part Number:

    What does a power valve do? The power valve allows the carburetor to function much leaner for part-throttle fuel economy but once the throttle is in a wide-open position, vacuum in the manifold drops to almost zero and the power valve enriches the fuel mixture. When the engine is returned to basic part-throttle operation and vacuum rises, the power valve closes up, leaning out the mixture. The power valve is important because of its effect on everyday, around-town drivability.

    The rule of thumb for power valve size selection is to divide your highest part throttle manifold vacuum reading by two and select the closest size smaller. Example: 8" Hg of manifold vacuum would use a 3.5" Hg power valve. Holley power valves include gaskets (thread size: 1/2-28).

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