Owners manual

INSTALLATION INSTRUCTIONS 9
MSD • WWW.MSDPERFORMANCE.COM • [phone] • FAX [phone]
GM IGNITIONS Wiring an HEI 5 or 7-pin Module (Amplifier Trigger).
NOTE: Some 5-pin models may
experience a hesitation or stall
on deceleration. If this occurs,
contact MSD Tech Line for the
required bolt-in diode to correct
the problem. MSD Tech Line
[phone].
Tachometer Compatibility List
AFTERMARKET TACHOMETER WHITE WIRE TRIGGER MAGNETIC TRIGGER CONNECTOR
AUTOGAGE 8910 8920
AUTOMETER NONE NONE
FORD MOTORSPORTS NONE NONE
MALLORY NONE NONE
MOROSO NONE NONE
STEWART (voltage triggered) 8910 8920
S.W. & BI TORX NONE NONE
SUN 8910 8920
VDO NONE NONE
AMC (JEEP) 8910 8920
CHRYSLER 8910 8920
FORD (voltage triggered) 8910 8920
GENERAL MOTORS Bypass In-Line Filter Bypass In-line filter
IMPORTS 8910 8920
Note: On the list above, the trigger wire on tachometers that are marked NONE may be connected to the Gray
Tach Output Wire on the MSD 6AL Ignition.
Figure 6 Common Tachometers and Adapters.
TACH/FUEL ADAPTERS
If your tachometer does not operate correctly or if you experience a no-run situation with your foreign
vehicle you probably need an MSD Tach Adapter. The chart in Figure 6 lists common tachometers
and if an Adapter is necessary.
MAGNETIC PICKUP
(NOT USED)
GREEN (-)
VIOLET (+)
*WHITE - CONNECTS TO BROWN AND TACH
*RED - CONNECTS TO 12 VOLTS AND PINK
*ORANGE - CONNECTS TO B+
*BLACK - CONNECTS TO C-
BLACK
BROWN
HEAVY PINK
OR RED FROM
VEHICLE WIRE
HARNESS
DISTRIBUTOR
CONNECTOR
PINK
TO TACH
RED*
RED JUMPER
WHITE*
WHITE JUMPER
FACTORY
HARNESS
ORANGE*
BLACK*
B+
GND
C-
GRAY
TACH OUTPUT
DIGITAL 6AL
REV
LIMITER