850 CFM Speed Demon Carburetor

Product Code: SPD-850-VS

£761.63 EX VAT

£913.96 INC VAT

Product Overview:

All of our Holley orders are done once a week from USA, if you need it sooner please contact us prior to ordering. Complete delivery may take up to 14 days.

Splitter Wiring Harness - Allows Connection of (2) Cube Lights or (2) Work Lights - Waterproof Connectors.

More Information

Product Details Specification Delivery & Returns

Product Details

The next generation of Speed Demon carburetors have arrived. The new aluminum Speed Demon series is the most formidable performance street carburetor available today and it's 40% lighter than the original. It features the most advanced design manufacturing processes that provides street enthusiasts with racing carburetor technology in a very drivable package. The Speed Demon line offers a wide range of sizes with vacuum and mechanical secondary designs. Across the range of sizes, from 650 cfm to 850 cfm, the Speed Demons deliver balanced, high-velocity airflow and exceptional fuel metering capacity to match the fuel requirements most street engines. A Speed Demon carburetor is ideal for muscle cars, stock rebuilds, mild performance applications, and crate motors. They are designed for mild engines from 302-427 cid with cam profiles between 220 and 240 degrees duration at 0.050".

Features:

All aluminum polished construction with billet metering blocks and base plate (Now 40% lighter than the original Demons!)
Fuel bowls and main body have been redesigned for a sleeker, more stylish appearance
Completely re-engineered and re-calibrated for better drivability and full throttle performance
Re-designed throttle lever with integrated Ford A/T, 700-R4, and Chrysler kick down options
Fuel bowls now have dual threaded inlets on each side, dual sight glass windows, and internal baffling for improved fuel slosh control
Changeable idle, high-speed air bleeds & power valve restrictions for precise tuning
Billet Baseplate with Idle-Eze allows precision fine tuning of the idle speed resulting in a smoother transition from off-idle
New simple part numbering system: Start with SPD (Speed Demon) Add the carburetor cfm size (650, 750, or 850) and then add the model suffix; MS (Mechanical Secondaries); VS (Vacuum Secondaries); AN (Annular Discharge Boosters)

Specification

Barrels	4
Billet Color	Shiny
Booster	Down Leg
Brand	Demon
CFM	850
Choke	Electric
Circuit	2
Condition	New
Emission Code	3
Finish	Shiny
Fuel	Gasoline
Fuel Inlet	Dual
Fuel System	Carbureted
High Speed Air Bleed	28
Idle Air Bleed Size	70
Marine Use	No
Material	Aluminum
Model	Speed Demon
Primary Main Jet	68
Primary Power Valve	6.5
Primary Pump Nozzle Size	31
Product Type	Carburetor
Secondaries	Vacuum
Secondary Main Jet	78
Supercharged Application	No
Throttle Bore	1.688 inch
Warranty	Limited 90 Day
Part Number	SPD-850-VS

Delivery & Returns

Billy's Speed Shop ensures the highest standard of service. Therefore we use only most reliable delivery services in the UK what allows us to provide you quick and efficient delivery of your products.

We aim to stock all of the products in our warehouse. However the situation may occur that we currently do not have particular item in stock then we will order it directly from UK supplier. If delivery time will exceed 3 days we will inform you via email or telephone.

Our Delivery Options are as follows:

Parcels up to 2kg and up to £50 of value are being sent via Royal Mail - 1st or 2nd class.
Parcels up to 2kg and £50 - £100 of value are being sent via Royal Mail - 1st or 2nd class - Tracked.
Parcels over 2kg and over £100 of value are being sent via Courier - DPD Tracked.
Bulk or Heavy purchases that weigh over 20 kg are sent on a pallet - Pallex.