MSD 6421 6AL-2 Ignition Control Installation - Manual (Page 16)

16 INSTALLATION INSTRUCTIONS
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• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 5 - 7 1 2 3 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
GM IGNITIONS Wiring an HEI 5 or 7-pin Module (Amplifier Trigger).
*WHITE - CONNECTS TO BROWN AND TACH
*RED - CONNECTS TO 12 VOLTS AND PINK
*ORANGE - CONNECTS TO B+
*BLACK - CONNECTS TO C-
MAGNETIC PICKUP
(NOT USED)
TO ENGINE
GROUND
ORANGE*
ORANGE*
BLACK*
BLACK*
B+ GN D C-
RED
WHITE
HEAVY RED
HEAVY BLACK
TO BATTERY
TO BATTERY
+
GREEN (-)
VIOLET (+)
BLUE
WHITE/BLUE HALL-EFFECT
(NOT USED)
2-STEP/LAUNCH
(12V TO ACTIVATE)
BLACK
BROWN
HEAVY PINK
OR RED FROM
VEHICLE WIRE
HARNESS
DISTRIBUTOR
CONNECTOR
PINK
TO TACH
RED*
RED JUMPER
WHITE*
WHITE JUMPER
18" BLACK
TO GROUND
FACTORY
HARNESS
GRAY
TACH OUTPUT
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 (915) 855-7123.
FORD IGNITIONS Wiring a Ford DuraSpark using White Wire Trigger.
RED
WHITE
GREEN
RED
FORD COIL
CONNECTOR
C+
TACH
MAGNETIC PICKUP
(NOT USED)
+
ORANGE (TO COIL +)
BLACK (TO COIL -)
RED
GREEN (-)
VIOLET (+)
WHITE
BLUE
WHITE/BLUE HALL-EFFECT
(NOT USED)
2-STEP/LAUNCH
(12V TO ACTIVATE)
HEAVY RED
HEAVY BLACK
TO BATTERY
TO BATTERY
+
GRAY
TACH OUTPUT