Mallory Ignition ACCEL DFI PRO RAM 77141_77142_77143_77144 - Manual (Page 2)

been cleaned, apply a fine bead of silicone on the bottom sides of the
replacement intake gaskets and place on the heads.
Next, place a 1/4” bead of silicone on both ends of the engine block. With all the
intake gaskets in place, carefully place the assembled Small Block Single Plane
Multi Point System onto the engine. Be sure that the gaskets are still aligned with
the bolt holes and start to thread the intake bolts into the engine heads. Torque
the intake bolts first to 20 LB/ft. then to 30 LB/ft. Next install the distributor
making sure that the rotor is aligned properly with the No.1 cylinder cap tower
location.
The next step is to route the vacuum lines. The following items need to be
referenced to manifold vacuum:
1) Map sensor 2) Pressure regulator 3) Power brake booster 4) PCV 5)
Transmission kick-down Note: Never splice the Map Sensor or Pressure
Regulator vacuum lines.
MOUNTING THE ECM
The ECM comes with four mounting holes designed for a #8 screw. The ECM
should be mounted behind the passengers kick panel on the floor. If your kick
panel has an air vent incorporated into it, DO NOT mount the ECM here. This
enclosure is not waterproof and therefore needs a mounting place free of
moisture. The alternate location is in the dash board area behind the glove box;
you can also mount the ECM in the engine compartment although it is not
recommended since it is only moisture resistant and not water proof. .
MAIN WIRE HARNESS
ROUTING AND CONNECTIONS
BEFORE PROCEEDING DISCONNECT BOTH BATTERY TERMINALS FROM
THE BATTERY.
The System contains two (2) Wire Harnesses. A Main Wire Harness (this will be
referenced as the MWH in the following instructions) and an Injector Wire
Harness.
The harness can be routed and connected as follows: Begin by connecting the
MWH’s connectors to the ECM. Then route MWH leg through the firewall hole.
Continue pulling the harness leg through the firewall until the rubber grommet
seat the firewall.
Make sure to connect the +12 V switch (PINK) to the switched IGN accessory in the fuse
box. The switched ignition accessory must maintain 12 volts during cranking.
Connect + 12 V (3/8” ring terminal), and battery ground (3/8” ring terminal) connectors
directly to battery. (Do not connect to back of alternator) Then connect all sensors and
IAC (connectors are labeled).
Finally connecting the fuel pump; (Refer to fuel pump mounting) if you need to
lengthen the red/black 12 volt+ wire to the fuel pump, be sure to use at least a 14-gauge
wire.
DISTRIBUTOR SELECTION AND SETUP.
ACCEL DUAL SYNC
GM HEI