Nitrous Express Ford 4.6L 2 Valve Plate System - Manual (Page 3)

Once the spacer is in place, using factory torque
specifications, you may tighten the 4 bolts on the
flange of the upper intake manifold. Once the four
bolts are tightened you may tighten the final bolt on
the support leg to the specified torque value.
Now it is time to install the proper jets in the plate
fittings. Make sure the number on the side of the jet
corresponds with the proper number for the desired
horsepower setting. You will repeat this process for
the nitrous and fuel side of the plate.
Once you have the jets installed, thread the provided
D-3 hoses (red for fuel, blue for nitrous) onto your
plate fittings. Using a back-up wrench tighten the
two hoses to the nitrous plate. (Failure to use a
back-up wrench when installing or changing jets
will void the nitrous plate warranty) The proper
tightening procedure for all AN fittings is hand tight
plus 1⁄4 turn. These hoses use AN flares so no thread
sealer is needed. Now return to the SOLENOID
MOUNTING section of your instruction manual to
conclude the installation.