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Firing Order 1-5-4-2-6-3-7-8
429/460 c.i.d. Ford V8
Turn distributor clockwise to advance timing.
• CAUTION: Use Edelbrock Performer-Link Timing Chain
and Gear Set #7830. Do not use late model timing chain and
gear sets that are designed for emission-controlled engines.
These timing sets are machined in a retarded position and are
not recommended for this camshaft installation. Edelbrock
Timing Sets feature three keyways for specific timing selec-
Figure 1
Timing Chain
Sprocket Alignment
Timing Marks
Figure 2
• CAMSHAFT/LIFTER RUN-IN
CAUTION: Change the engine oil and filter before start-up
and again after the initial break-in. Do not allow the engine to
run under 2000 rpm for the first 1/2 hour. Vary engine speed
between 2000 and 2500 rpm. Slow idle speeds may result in
severe cam and lifter wear.
1. Start the engine and bring to break-in rpm.
• IMPORTANT INSTRUCTIONS AFFECTING
YOUR WARRANTY
• CAM LOBE WEAR- Cam lobe wear is almost non-existent
unless mismatched parts are used or installation of the cam
and lifters is done improperly. Most cam damage is caused by
the timing gear coming loose due to improper torque on bolt.
Bolts holding gear to camshaft should be torqued carefully and
a locking compound applied to threads of bolts.
• CAM GEARS AND CAMSHAFT END PLAY- If cam gear
becomes loose, the cam will slide back in the block, causing
the lifters to hit the lobes next to them and also the cam bear-
ing journals. If the engine is run after this happens, the bottom
of the lifters and the sides of the lobes will become clipped.
When installing a camshaft, it is always important to check for
proper operating clearances, especially when high performance
components are used. Things to look for that can cause failure
and damaged parts are as follows:
1. Improper valve-to-piston clearance (this should be no less than
0.080").
2.
Rocker arm stud slot clearance (both ends; valve closed and open).
3. Proper spring settings (see dimensions with spring instruction
sheet; correct dimensions mean maximum performance and
longer engine life).
• SPECIAL INSTRUCTION
With the Edelbrock manifold and camshaft package plus a head-
er installation, a carburetor jet change may be required for best
performance. Due to the varied applications of year and model
of vehicles, no one combination could suffice for all installa-
tions. The following procedure is only a guideline and in many
cases, the manufacturing specifications for recommended carbu-
retors or timing may be best.
• IGNITION TIMING
Ignition timing for this package may vary with each application.
A good starting figure would be between 10 degrees to 14
degrees initial timing at idle with vacuum advance disconnected.
Total advance should not exceed 32 degrees to 34 degrees with
initial and centrifugal weights combined and should be at full
advance at 3000-3500 rpm. After timing is adjusted, re-connect
the vacuum advance line. NOTE: The best combination for any
particular vehicle or application must be determined by trial and
error using the above information as a guideline.
• HEADERS
For best performance, headers are recommended. For this appli-
cation, they should be 1-3/4" diameter, approximately 31"
long
and terminating into a 3" or 3-1/2" collector. The remainder of the
exhaust system should consist of dual exhaust and tail pipes, at least
2" diameter with low back-pressure mufflers.
• WARNING
In order for this Performer RPM cam and lifter kit to be covered
under ANY WARRANTY you MUST use the correct Edelbrock
Sure Seat Valve Springs. The end flap or label from your Sure
Seat Valve Spring box must be sent in with your camshaft war-
ranty card.
Failure to install new Edelbrock Sure Seat Valve Springs with
your new Performer RPM cam and lifter kit could cause the cam
lobes to wear excessively and could cause additional engine
damage. IF YOU HAVE ANY QUESTIONS ABOUT THIS
APPLICATION, PLEASE CONTACT OUR TECHNICAL
DEPARTMENT IMMEDIATELY.
•
PLEASE complete and mail your warranty card. Be sure to write
the model number of this product in the “Part #____” space..
THANK YOU.