Edelbrock Performer 70011 Information Manual

Jet Map Information
Edelbrock engineering has conducted dyno testing with the Performer system to provide you with a baseline jet map. Your jet map
may change with the use of other components. These jet combinations are supplied with this system to enable you to vary your
engine's power output.
Square Flange Jet Map
Approximate
HP Gain
50
75
100
Spread-Bore Jet Map
Approximate
HP Gain
50
75
100
Jet Map Footnotes:
Spark Plugs: All jetting combinations shown should use a spark plug one heat range colder than normal.
Fuel: All jetting combinations shown should only be used with 92 octane or higher pump gas.
Edelbrock recommends an NGK spark plug with a heat range of -9 to -11 depending on the nitrous power level being tuned. When
in doubt, always go to the next cooler heat range plug.
The dyno tests were conducted at Edelbrock using a highly modified Big Block Chevrolet. Modifications included Edelbrock intake
manifold, cylinder heads, dyno headers, pistons, rods, crankshaft, and improved ignition. These tests were conducted with 950 psi
nitrous and 6.5 psi fuel pressure. All stated timing adjustments listed in the jet map is where the motor being tested performed best.
Final timing should be adjusted to achieve best power and/or MPH per application.
Any variation in jetting patterns other than what is listed above and engine damage could occur. Please contact the Edelbrock
Technical Department with any questions you have concerning jetting patterns and their effects on engine performance.
Catalog #70011, #70012
Rev. 07/08 - AJ/mc
Nitrous Jet Fuel Jet Timing Adjustment
38 38
46 46
57 57
Nitrous Jet Fuel Jet Timing Adjustment
40 40
50 50
59 59
EDELBROCK JET MAP INFORMATION
For use in nitrous kits #70011 & #70012
1°-3° Retard
2°-4° Retard
3°-5° Retard
1°-3° Retard
2°-4° Retard
3°-5° Retard
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©2008 Edelbrock Corporation
Brochure No. 63-70011