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©2004 Edelbrock Corporation
Brochure No. 63-0190 - DC/mc
Rev. 03/04
Catalog #70003 & #70004
Page 5 of 28
1.0 Introduction to your Edelbrock 2-Stage Performer RPM Nitrous System
Within the pages of this manual is information, safety tips and operation instructions for your new Edelbrock Nitrous System. Watch
for these symbols to know where to go for information.
….There is safety related information here.
….shows where technical information about your vehicle or specific skills that may help during
installation.
….call Edelbrock Technical support hotline for more information.
1.1 General Information
The Edelbrock 2-Stage Performer RPM Nitrous System (Part Number 70003 and 70004) is intended for
use on domestic style V-8 engines using single square-flange 4 bbl. carburetors (Part Number 70003),
and Spread-bore 4 bbl. carburetors (Part Number 70004). Horsepower and torque increases can vary with
equipment upgrades and modifications.
These types of systems utilize an adjustable plate that seats in between the carburetor and the carburetor mounting
flange on the intake manifold. The adjustability comes from the ability of the plate to accept different orifice-sized
jets. The plate has y-shaped jet fittings at opposite ends of the plate that control the amount of nitrous oxide and
fuel flow into the engine.
This system has been designed with some flexibility as to where certain components can be located to allow easy
installation on vehicles with upgraded or modified equipment. The solenoid and microswitch brackets are designed
to be manipulated (bent, cut, twisted, etc.) and the electrical components have properly sized and ample lengths of
wire.
Contact your local automotive store, motorcycle shop or race track for refilling of your bottle. Trust a professional
to properly fill your bottle and reference your installation manual when re-installing your filled bottle back into your
vehicle.
Always take care when handling a full bottle of nitrous oxide. Please reference this manual for further safety
measures to take during the handling of a nitrous oxide bottle.
Please follow all safety methods during the installation of your Edelbrock Nitrous System, and follow all vehicle
regulations and road laws when using your nitrous system.
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