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PREP AND TUNING FOR POWER:
1. Generally speaking, the stock jetting for a Performer or Thunder Series carburetor will not need changing. Specific
applications may show an increase in power by tuning the fuel mixture.
2. Aftermarket distributor curve kits may be used with Torker II intake manifolds. A basic ignition curve of 12° to 14° initial,
and a total of 36° to 38° advance is a good starting point.
3. Use modified or high performance cylinder heads such as our Performer RPM. Port matching is not required.
4. The compression ratio should be at least 9.5 to 1 to work properly with camshafts designed to operate in the 2500-6500
rpm range.
5. Installation of aftermarket headers, camshafts, or both with an Edelbrock Torker II series intake manifold may lean carburetor
calibration. Should this condition occur, recalibrate as shown in your carburetor's owners manual.
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CAMSHAFT AND HEADERS: This intake manifold is compatible with aftermarket camshafts and headers designed for the 2500-
6500 rpm range. Header primary tube diameter should be 1-7/8".
1. Use only recommended intake gaskets set when installing this intake manifold. For ease of installation, we recommend
using Intake Manifold Bolt Kit #8594.
2. Fully clean the cylinder head intake flanges and the engine block end seal surfaces.
3. Use a factory style valley pan along with the recommended gaskets.
4. Apply Edelbrock Gasgacinch sealant P/N 9300 to both cylinder head flanges and to the cylinder head side of the gaskets,
allow to air dry, and attach the intake gaskets.
5. Install the intake manifold and hold-down bolts. Torque all of the manifold bolts in two steps by the sequence shown in Figure
1 to 25 ft/lbs.
6. See Figure 1 for Firing Order and Cylinder Numbering.
Catalog #5091
Rev. 7/05 - RS/mc
INSTALLATION INSTRUCTIONS
6
2
1
5
Figure 1 - 400-426-440 c.i.d. Chrysler Intake Manifold Torque Sequence
Turn Distributor Clockwise to Advance Timing
Edelbrock Corporation • 2700 California St. • Torrance, CA 90503
Tech Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com
2
4
4
3
1
3
Torque Bolts to 25 ft/lbs.
Firing Order 1-8-4-3-6-5-7-2
Page 2 of 2
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©2005 Edelbrock Corporation
Brochure #63-0431
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