If you have Acrobat Reader here is the link for troublshooting and coil specs.
http://www.cranecams.com/pdf/90006000d.pdf

From that link

When the ignition switch is turned on, the HI-6
completes an internal diagnostic check and lights up the
status LED. When the engine is cranked, the status LED
will rapidly blink to indicate that a valid trigger signal is
being received.
If certain failure modes occur, the HI-6 will shut off
(engine stops running) and the status LED will continuously
blink a diagnostic code, similar to a check engine
light. The LED will blink a number of times followed by a 2
second pause. The number of blinks indicates the fault
mode. Refer to the troubleshooting section starting on
page 14.

INTERNAL DIAGNOSTICS
When the ignition switch is turned on, the HI-6
completes an internal diagnostic check and lights up the
status LED. When the engine is cranked, the status LED

ENGINE WILL NOT START
1. If the status LED lights up when the ignition switch is
turned on but the engine will not start, verify that the
status LED blinks while the engine is cranking.
2. If the status LED doesn't blink, the HI-6 is not receiving
a trigger signal. Recheck trigger signal electrical connections
and trigger source. Make sure the magnetic
trigger leads are not shorted together or to ground.
Make sure the white points trigger wire is not shorted
to ground.
3. If the status LED blinks, but engine will not start,
recheck coil primary connections or replace coil. The
only wires going to the coil primary should be the
orange and black wires from HI-6 coil cable. Note: GM
internal HEI coils require a ground wire that grounds
the secondary and core to the distributor.
4. If the engine momentarily starts and then dies, go back
to the Fuel Injection And Fuel Pump Relay section on
Complete the installation of the HI-6 ignition module

voltage terminals. Use only resistor spark plugs when
running on the street.
Conducted noise from the HI-6 is carried through
+12 volt power connections. Conducted noise can be
reduced by installing a power line noise filter (available at
Radio Shack) near the affected radio.
NOISE SUPPRESSION ON STAGE LIMIT
INPUT
In some applications the stage input (yellow/white
wire) is connected to a switch that also controls a line lock
or transmission brake solenoid valve. When the switch
opens and current flow to the solenoid is interrupted, electrical
transients (up to 500 volts) occur. These transients
can lead to glitches in on-board electronics. Arcing also
occurs in switch contacts greatly decreasing switch life
and possibly resulting in erratic operation. This may cause
inconsistent launch and 60 foot times.
The solution is to install the supplied surge
absorber. It will limit the maximum voltage to about 40
volts. The surge absorber appears as a small 1/2 inch
diameter disk with two wire leads. Solder one lead to the
stage switch and the other lead to a terminal that connects
to ground as shown in Figure 2.
POWER SUPPLY FILTER CAPACITOR
HOOKUP
A filter capacitor on the 12 volt supply is recommended
if the HI-6 power wires are extended, the battery
is located in the trunk, or solenoid valves drawing more
than 10 amps are used. Use a minimum 38,000 microfarad
(uF) 16 volt capacitor such as Crane P/N 9000-0014.
Install the capacitor across the 12 volt supply (heavy red
wire) and chassis ground near the HI-6 unit.
TROUBLESHOOTING HI-6
OPERATION
If certain failure modes occur, the HI-6 will shut off
(engine stops running) and the status LED will continuously
blink a diagnostic code, similar to a check engine
light. The LED will blink a number of times followed by a 2
second pause. The number of blinks indicates the fault
mode:
1 Blink: Power supply fault on initial power up. This
may indicate that the coil connections are directly shorted
to ground. Turn the ignition switch off, disconnect the coil
primary wires and temporarily tape them up. If the same
fault reoccurs when the ignition switch is turned on again,
the HI-6 has failed.
2 Blinks: Power supply leakage on initial power up.
This may indicate that coil wire insulation has broken
down or that the coil secondary has a short to ground.
Turn the ignition switch off, disconnect the coil primary
wires and temporarily tape them up. If the same fault reoccurs
when the ignition switch is turned on again, the HI-6
has failed.
3 Blinks: Coil short to ground during operation. This
may be caused by an intermittent fault in the coil or wiring.
Turn the ignition switch off, disconnect the coil primary
wires and temporarily tape them up. If fault codes 1 or 2
occur when the ignition switch is turned on again, the HI-
6 has failed.
4 Blinks: Coil primary short during operation. The two
coil primary wires are shorted together or the coil has an
internal short across the primary. Turn the ignition switch
off, disconnect the coil primary wires and temporarily tape
them up. If fault codes 1 or 2 occur when the ignition
switch is turned on again, the HI-6 has failed.
5 Blinks: Coil primary open during operation. This fault
will occur only if the coil primary connection is broken
(open) while the engine is running.

Les