Demon Fuel Systems SPD-850-VS Carburetor

Speed Demon Carburetor; 850 cfm; Demon 4150 Vacuum Secondary; Down Leg Booster; For 302-427 CID Engines w/Cam Profiles Between 220-240 Deg. Duration At 0.050 in.;
MPN
SPD-850-VS
$697.76
In stock
Only 1 left
Ships on or before the next business day!
Speed Demon Carburetor; 850 cfm; Demon 4150 Vacuum Secondary; Down Leg Booster; For 302-427 CID Engines w/Cam Profiles Between 220-240 Deg. Duration At 0.050 in.;


SPECIFICATIONS:
  • WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warning.ca.gov

FEATURES:
  • All Aluminum Polished Construction
  • With Billet Metering Blocks And Base Plates
  • Fuel Bowls and Main Body Have A Sleeker More Style Appearance
  • Complete Reengineered and Re-Calibrated
  • Redesigned Throttle Lever w/Integrated Kick Downs Options
  • Fuel Bowls Now Have Dual Threaded Inlets On Each Side
  • Secondary Fuel Bowls Include Notched Floats
  • Changeable Idle High Speed Air Bleeds
  • Changeable Power Valve Restrictions For Precise Tuning

The Mighty Demon is perhaps the best value for the dollar in the carburetor market today. It is available in a full range of sizes and directly replaces the Holley HP Models. It features billet aluminum metering blocks/billet aluminum baseplates/large capacity fuel bowls completed with patented sight glasses and patented streamlined air entries. Some of these features are found only on modified carburetors costing much more and several are available only on Demon Carburetors. These innovative ideas allow the new Mighty Demons to produce more power and achieve higher levels of performance than conventional designs. All Mighty Demon carburetors come with a General Competition tuneup but can be easily modified using BG Fuel Systems carburetor service and tuning parts. For high output street engines and for race engines the Mighty Demon delivers the best performance value for the dollar.

The most revealing signs of a carburetor company's standing are its reputation for innovation, its record of success, and how easy it is to deal with. When the Demon range of four-barrel modular carburetors first burst onto the scene in the late 1990's, it acquired a meteoric reputation for innovation. Immediately noticeable was its uniquely attractive appearance with beautifully contoured air entries and shapely fuel bowls. This coupled with its vast array of ground-breaking features set it apart. By combining with a giant like Holley we will continue to innovate. Holley who has been manufacturing fuel systems of all shapes and sizes since 1903. In fact, over 250,000,000 carburetors have been produced over the years for everything from Henry Ford's original Model A to the baddest factory muscle cars ever to roll out of Detroit. Did you know that Holley supplied over half the carburetors in WWII including not just automobiles, but PT Boats and airplanes? It's true. No company knows fuel systems like Holley. Today, Holley carburetors continue to be a dominant force in high performance and racing, winning more races than all others combined. Holley carbs have powered every NASCAR Sprint Cup Series(TM) team and nearly every winning NHRA Pro Stock team since the 1960s and every weekend still today. Holley and Demon Carburetion are driven by innovation and a desire to maintain lasting relationships with its customers. We, therefore, invite you to share your voice-don't hesitate to tell us how we're performing and how we can do better!

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