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Catalog #70014 & 70015
Brochure # 63-0181
©2003 Edelbrock Corporation
Rev. 6/03
Page 2 of 2
Nitrous and Fuel Jetting Selection
Edelbrock engineering has conducted dyno testing with the Victor Jr. system to provide jetting maps for two seperate plates at
different jetting levels. The jet combinations supplied with this plate kit were achieved using Edelbrock components. Your jet map
will change with the use of other components. The nitrous testing was done using Performer RPM solenoids, -6AN fittings and
lines, and a bottle pressure of 950 psi and 7.5 psi fuel pressure.
Edelbrock Corporation
2700 California Street
Torrance, CA 90503
Tech Line: (800) 416-8628
Office: (310) 781-2222
Tech Fax: (310) 972-2730
Tech E-Mail: edelbrock@edelbrock.com
DOMINATOR-FLANGE JET MAP
Nitrous/Fuel Jetting Approx. HP Gains Timing Adj.
38/39 200 hp 30 Deg. Total
54/54 300 hp 24 Deg. Total
61/58 400 hp 20 Deg. Total
SQUARE-FLANGE JET MAP
Nitrous/Fuel Jetting Approx. HP Gains Timing Adj.
39/39 200 hp 28 Deg. Total
48/46 300 hp 24 Deg. Total
58/56 400 hp 20 Deg. Total
These dyno tests were conducted at Edelbrock using a mildly modified 500 cubic inch engine. Modifications included Edelbrock
intake manifold, dyno headers and improved ignition. These tests were conducted with a bottle pressure of 950 psi and the fuel
system running at 7.5 psi flowing. All stated timing adjustments listed in the jet maps above are where the engine ran at its best
with the nitrous system activated. Final timing should be adjusted to achieve best power and/or MPH per application. Edelbrock
recommends using Champion C-64-C or equivalent spark plugs. The fuel used should be 110 Octane or better. The Victor Jr.
Series Nitrous Plate is intended for single-plane manifolds only. Do not use with a dual plane manifold. In testing, we
found that dual plane manifolds have some distribution problems at these extremely high flow rates that could cause serious damage.