Carburetor Power Valve – Standard

6.5" of Mercury to open valve

PART# 240065

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Proper power valve selection is crucial to carburetor tuning Demon Fuel Systems offers a complete range of quality power valves to accommodate every tuning requirement. Our power valves are rated in inches of mercury (amount of vacuum) required to open the valve. Most 4150/4160/2300 model carburetors use the Standard while 4500 and alcohol carburetors use the Hi–Flow power valve. Power valves should be replaced periodically to prevent leakage. All include gasket.


Emission Code5
Gaskets IncludedYes
Product TypePower Valve
WarrantyLimited 90 Day
Part Number240065


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Warranty Information

Limited 90 Day: See Details
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        Some parts are not legal for use in California or other states with similar regulations.