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4. Replace valve covers, carburetor linkage and remaining vacuum and
electrical connections.
5. Re-install air conditioner, if so equipped.
6. Refill radiator with coolant and re-connect battery.
7. Double check all connections, fuel lines, etc. before starting engine.
• CAMSHAFT/LIFTER RUN-IN
CAUTION: Change the engine oil and filter before start-up.
1. No break-in is required with roller lifters.
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 bearing journals. If the
engine is run after this happens, the bottom of the lifters and the
sides of the lobes will become chipped.
When installing a camshaft, it is always important to check for prop-
er operating clearances, especially when high performance compo-
nents are used. Things to look for that can cause failure and dam-
aged 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).
• IGNITION TIMING
Ignition timing for this package may vary with each application. Best
results were obtained using stock Ford timing setting specified for
your year and model vehicle (10° BTDC initial). NOTE: The best com-
bination 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. Edelbrock Tubular
Exhaust System #6845 or #7945 is a street legal replacement part
for 1986-93 Mustangs with the 5.0L V8. RPM Series Cat-back
Exhaust systems are also available featuring mandrel-bent tubing
and free-flowing RPM Series stainless steel mufflers. Use Edelbrock
RPM Series Cat-back Exhaust System #5645 (1987-93 Mustang GT)
or #5646 (1986 Mustang GT and 1986-93 Mustang LX).
• WARNING
In order for this Performer-Plus cam to be covered under ANY WAR-
RANTY you MUST use the correct Edelbrock Sure Seat Valve Springs
or original equipment replacements. The end flap or label from your
Sure Seat Valve Spring box must be sent in with your camshaft war-
ranty card.
©2008 Edelbrock Corp.
Failure to install new Edelbrock Sure Seat Valve Springs with your
new Performer-Plus cam could cause the cam lobes to wear exces-
sively and could cause additional engine damage. IF YOU HAVE ANY
QUESTIONS ABOUT THIS APPLICATION, PLEASE CONTACT OUR
TECHNICAL DEPARTMENT IMMEDIATELY.
• SPECIAL NOTICE: Edelbrock Performer-Plus camshaft kit #3722 has
received E.O. #D-215-14 making it legal for street use on pollution-
controlled motor vehicles in all 50 states. To assist you with emis-
sions equipment certification, we have included a fan shroud decal to
help testing personnel verify that the camshaft is a legal replacement
part for 5.0L Ford vehicles. The adhesive-backed decal should be
affixed to your fan shroud next to the existing emission and engine
specification decal. Do not cover your original equipment specifica-
tion decal with the Edelbrock Performer-Plus camshaft decal.
Firing Order 1-3-7-2-6-5-4-8
Turn Distributor Clockwise to Advance Timing
Timing
Marks
Timing Chain Sprocket Alignment
page 3
Figure 1—5.0 Litre Ford
Figure 2-
Brochure #63-3722
Rev. 9/08 - AJ/mc
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