Edelbrock 2925 User Manual download pdf

Catalog #2925.

Rev. 5/07 - RS/mc

Brochure #63-2925

Page 1 of 2

PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and

procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this installation,

it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical Hotline at:

1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at [email protected]

IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation

will void your warranty and may result in poor performance and engine or vehicle damage.

DESCRIPTION: The Super Victor Small Block Chevrolet intake manifold is designed for use on competition 302-400 C.I.D. small block Chevrolet

engines operating from 3500-8000 RPM. Features include 2.80 square inch cross section runners designed to match the “flat floor” entry of today’s

23° cylinder heads. It is designed for standard port location 23° Chevrolet cylinder heads. Runners should be port matched to your cylinder heads for

optimal performance.

NOTE: This manifold is designed for competition vehicles only! It is not intended to be used on the street as it does not have provisions for

chokes, emissions equipment, etc. Note that additional coolant outlets (3/8" NPT) are provided at the rear of manifold for custom cooling

system plumbing, if desired. IT IS THE RESPONSIBILITY OF THE END USER TO VERIFY CONFORMITY TO A PARTICULAR RACING

ASSOCIATION’S RULES REGARDING MANIFOLD DIMENSIONS, FITMENT TO A TEMPLATE, ETC.

SUPER VICTOR SMALL BLOCK CHEVROLET

For 302-400 c.i.d. Chevrolet V8

Catalog #2925

INSTALLATION INSTRUCTIONS

EGR SYSTEMS—This manifold will not accept stock EGR (exhaust gas

recirculation) equipment. EGR systems are used on some 1972 and later

model vehicles and only in some states. Check local laws for

requirements.

INTAKE GASKETS—Manifold runners as cast fit well with Edebrock

#7201 intake gaskets. If additional port enlargement is desired, use Fel-

Pro #1206 intake gasket or equivalent.

CARBURETOR RECOMMENDATIONS—Use appropriate 4150 series

racing carburetor. See Edelbrock catalog or visit www.Edelbrock.com for

available fuel lines, accesories, and linkage adapters if necessary for

your application. For assistance please contact our Technical Hotline

listed above.

CARBURETOR SPACERS—Both engine dynamometer and in-car tests

have shown additional torque is available by use of a one-inch high open

(not 4-hole) carburetor spacer (#8710 or #8720) on the Super Victor

manifold. This normally requires slight re-calibration of the carburetor

since small losses of fuel signal cause the engine to run somewhat

leaner than without the spacer. A simple jet change is typically all that

needs to be done. If a spread-bore carburetor is to be used, a 1-inch

adapter will provide the necessary height increase (if hood space is

available).

PORT MATCH—Each intake runner should be matched to the cylinder

head port size on all four sides of runner exit. This would be the floor,

roof and each sidewall per the included illustration. Any sharp edges left

from port runner enlargement should be radius-blended to prevent high

rpm air/fuel separation at the cylinder head. This does not include

removing material on floor back into the runner from the exit end. It is

just a port match. Due to the as-cast size of the Victor Jr. manifold

runners, very small amounts of material need to be removed to match

ports. No other modification or material removal is necessary. Refer to

illustrations for floor radius. Hard-roll polishing is acceptable, but

substantial amounts of grinding away of manifold material can impair its

performance by substantially upsetting air/fuel distribution among

cylinders.

Figure 1

Stock Height

1”-2” Back

From Exit

Roof

Floor

Stock Height

Matched

to Head

Figure 2

1 2

Summary of Contents

Page 1 - INSTALLATION INSTRUCTIONS

Page 2 - Page 2 of 2

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