Edelbrock 70401 Installation Instructions
©2003 Edelbrock Corporation
Rev. 5/03
Brochure No. 63-0165
Catalog #70401
Page 1 of 2
150HP Upgrade System for the 70400 80HP
Ford 5.0L/4.6L Nitrous System
Catalog #70401
INSTALLATION INSTRUCTIONS
Please study all instructions carefully before you install your new 150HP Upgrade System. If you have any questions or
problems, please call our Technical Hotline at: 1-800-416-8628, 7:00 a.m. to 5:00 p.m., Monday through Friday,
Pacific Standard Time or e-mail us at edelbrock@edelbrock.com.
Jet Map Information: Edelbrock engineers have conducted extensive dyno testing with the Edelbrock Ford 5.0L/4.6L
Performer EFI Nitrous System to ensure the horsepower increase is as intended. On a typically stock 5.0L/4.6L engine,
you can expect the following approximate power gain:
Nitrous/Fuel Jetting
Approx. HP Gains
Final Air/Fuel Ratio
.061
.049
125
12.0:1
.067
.047
150
11.5:1
The dyno tests were conducted at Edelbrock using a stock 5.0L engine. These tests were conducted with 950 psi nitrous
bottle pressure.
®
Fuel Filter
Push Connect Fittings
Fuel Pump
Fuel Pump Installation and Wiring
Warning: Before performing any of these steps, relieve the pressure in the fuel system.
1. Mount the fuel pump to the under-carriage of the vehicle in the same general area as the fuel filter. Cut the supplied
fuel line to size as pictured.
2. Locate the fuel filter on the under-carriage of the car. Disconnect the Push Connect Fitting from the filter.
3. Connect one of the cut fuel hoses from step 1 to the inlet side of the fuel pump and secure with one of the supplied
hose clamps.
4. Install the supplied Female Push Connect Fitting to the other end of the inlet fuel hose and secure with a supplied hose
clamp. Follow the Push Connect Fitting Removal and Installation Instructions listed below to connect the Female Push
Connect Fitting to the outlet of the fuel filter.
Direction of Fuel Flow