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new products that you ask for! Go to www.msdperformance.com/registration.

Parts Included

1 – Ignition Controller, PN 6012

1 – Pro-Data+ Software CD

1 – Harness

1 – Parts Bag

6 – Timing Modules

MSD 6LS-2 Ignition Controller for

Carbureted and EFI LS 2/LS 7 Engines

PN 6012

Optional Accessories

Hand Held Monitor, PN 7550

Factory EFI Harness, PN 88862

WARNING: During installation, disconnect the battery cables. When Disconnecting, always remove

the Negative cable first and install it last.

Note: Solid core spark plug wires or non-resistor spark plugs cannot be used with an MSD Ignition

Control.

CARBURETOR

The PN 6012 Ignition Controller is designed for GM LS 2/LS 7 based engines that have been retro-fit with

an intake manifold and carburetor. The Controller is supplied with a wiring harness that connects to the

factory connectors for a simple installation.

EFI

This Controller can also be used in stock, EFI applications, by using accessory Harness PN 88862. This

Harness allows the PN 6012 Controller to tap into the sensor signals without interrupting the OEM ECU.

The ECU and Fuel Injectors operate as normal while the PN 6012 controls the ignition and timing.

OPERATION

The MSD Controller offers several programmable features that allow rpm and timing adjustments. This can

be achieved through the supplied Pro-Data+ software via a PC or with the optional Hand Held Programmer,

PN 7550. Timing adjustments and selections can also be made with plug-in modules. Software installation,

operation and the programmable features of the Controller are explained in detail in this document. More

information can be found in the Pro-Data+ Software Help section.

MOUNTING

The Controller is designed to be mounted under the hood or on the firewall. Do not mount the unit near

exhaust. Four vibration mounts are supplied to mount the unit. Find a suitable location, confirm that all of

the wires reach their connections. Mark the mounting hole locations using the unit. Drill the holes with a

3/16" bit.

WIRING

All of the wiring, except three wires, are routed into factory style connectors to ensure an easy installation.

The wire descriptions follow in the chart on pages 2 and 3.