Limited Warranty

MSD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly

installed and purchased from an authorized MSD dealer, for a period of one year from the date of the original purchase. This

warranty is void for any products purchased through auction websites. If found to be defective as mentioned above, it will be

repaired or replaced at the option of MSD. Any item that is covered under this warranty will be returned free of charge using

Ground shipping methods.

This shall constitute the sole remedy of the purchaser and the sole liability of MSD. To the extent permitted by law, the foregoing

is exclusive and in lieu of all other warranties or representation whether expressed or implied, including any implied warranty of

merchantability or fitness. In no event shall MSD or its suppliers be liable for special or consequential damages.

*Intended normal use means that this item is being used as was originally intended and for the original application as sold by

MSD. Any modifications to this item or if it is used on an application other than what MSD markets the product, the warranty will

be void. It is the sole responsibility of the customer to determine that this item will work for the application they are intending. MSD

will accept no liability for custom applications.

Service

In case of malfunction, this MSD component will be repaired free of charge according to the terms of the warranty. When

returning MSD components for warranty service,

Proof of Purchase must be supplied for verification. After the warranty

period has expired, repair service is based on a minimum and maximum fee.

All returns must have a Return Material Authorization (RMA) number issued to them before

being returned. To obtain an RMA number please contact MSD Customer Service at 1 (888) MSD-7859 or

visit our website at www.msdperformance.com/rma to automatically obtain a number and shipping information.

When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to include

a detailed account of any problems experienced, and what components and accessories are installed on the vehicle.

The repaired unit will be returned as soon as possible using Ground shipping methods (ground shipping is covered by

warranty). For more information, call MSD at (915) 855-7123. MSD technicians are available from 7:00 a.m. to 5:00 p.m.

Monday - Friday (mountain time).

© 2014 MSD LLC

FRM31980

Created 04/14

Printed in U.S.A.

WIRING

The supplied harness plugs into the Rev Limiter and then should be routed to the HEI Distributor Cap. Red

connects the B+ (Battery positive) terminal of the cap and the Green wire connects to C- (Coil negative). It is

recommended to connect the Black wire to the engine block or common ground stud. Proper grounds are

imperative to the operation of the Rev Limiter and other electronics of the racecar and must be installed to a

clean, secure, ground source.

Caution: It is important to note that if the Black wire loses ground or the Red wire is disconnected from

12 volts,

the engine will shut off.

Figure 2 Wiring the Digital HEI Rev Limiter.

RED - B+

GREEN - COIL-

BLACK - ENGINE GROUND