Owners manual

INSTALLATION INSTRUCTIONS 13
MSD • WWW.MSDPERFORMANCE.COM • [phone] • FAX [phone]
GM IGNITIONS Wiring an HEI 4-pin Module (Magnetic Pickup Trigger).
NOTE:
NOTE:
The stock rotor button must be
replaced with an MSD Low Resis-
tance Bushing, PN 8412.
The GM Ignition Module is removed
and replaced with the MSD PN
8861 Wire Harness.
GM IGNITIONS Wiring an HEI 5 or 7-pin Module (Amplifier Trigger).
NOTE:
NOTE:
The stock rotor button must be replaced with
an MSD Low Resistance Bushing, PN 8412.
Some 5-pin models may experience
a hesitation or stall on decelera-
tion. If this occurs, contact MSD
Tech Line for the required bolt-in
diode to correct the problem. MSD
Tech Line [phone].