Service manual

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4. At this point, there should be no bogs, flat spots or black smoke (indicating excessive richness) when accelerating at wide
open throttle from a standing start.
JETTING (MAIN JETS):
Due to varied applications that a universal performance carburetor will work with, a few tips on jetting are provided to help you
understand their purpose.
1. Out of the box jetting is extremely close for most applications.
2. Carburetors are calibrated at sea level. Decrease the jet size primary and secondary, one number for every 2000 ft.
increase in altitude.
3. Holley® jets are broached, flowed, and stamped according to flow rate. NEVER drill jets, as this seriously alters flow
characteristics. Stamped numbers are reference numbers and DO NOT indicate drill size.
4. In most cases it will be unnecessary to increase jet size more than four numbers greater than out of the box jetting.
Exceptions could arise when the carburetor is mounted on a very large volume, plenum-ram manifold.
5. Spark plugs provide the best indication of proper jetting. Consult an ignition manual for proper reading of spark plugs.
HOLLEY® PERFORMANCE PRODUCTS LIMITED WARRANTY
NO OTHER WARRANTIES APPLY
Holley® Performance Products warrants its new performance products to be free from defects in material and workmanship for
a period of 90 days from date of purchase.
Holley® Performance Products Limited Warranty specifically does not apply to products which have been (a) modified or altered
in any way; (b) subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or
other contaminants, water, corrosion or faulty repair; or (c) used in other than those applications recommended by Holley®
Performance Products. Holley® Performance Products also does not warrant, and disclaims all liability for products used in
racing activities and/or applications other than those specifically recommended in the current Holley® catalog.
This Limited Warranty is extended to the original consumer only. This Limited Warranty is not assignable or otherwise
transferable. There are no warranties which extend beyond those stated herein. Holley® Performance Products offers no other
warranties, express or implied beyond this Limited Warranty.
In the event of an alleged defect in material or workmanship, Holley® Performance Products responsibility is strictly limited to
repair or replace the defective product. Holley® has no other obligation express or implied. Final warranty determination will be
in the sole discretion of Holley® Performance Products. Holley® shall not be responsible for: (a) actual or alleged labor,
transportation or other incidental charges; or (b) actual or alleged consequential or other damages incurred by use of any
product of Holley® Performance Products.
To initiate the warranty process:
Return the alleged defective product to the original place of purchase with dated purchase receipt and completed applicable
warranty claim tag. Warranty claims will be rejected if the consumer cannot establish date of purchase. Unless the product was
purchased directly from Holley® Performance Products, do not send directly to Holley® Performance Products. Holley®
Performance Products assumes no responsibility for unauthorized products sent directly to Holley® Performance Products.
This Limited Warranty sets forth specific legal rights. The consumer may have other rights as a result of variations in state laws
or provincial laws. This Limited Warranty supersedes all prior warranty statements.
Holley® Performance Products, Inc.
1801 Russellville Road
Bowling Green, KY 42101-3542
Technical Service: 1-866-GOHOLLEY (1-866-464-6553)
© 2009 Holley Performance Products, Inc. All rights reserved.
199R10500
Revision Date: 9-19-11