Trevor, the numbers on the secondary conductor retainer are usually
included on genuine GM cap components, but not always on aftermarket parts.
What has happened in your case is that the engine was not at top dead
center, compression stroke, when the distributor was installed. So, the
installer rewired the plug wires in the cap instead of removing the
distributor and rotating the engine 360 degrees. If you want the numbers to
agree with the wire placement, the distributor should be removed, the
engine rotated clockwise 360 degrees, and the cap rewired to coincide with
the numbers on the cap. OR, YOU COULD JUST LEAVE IT ALONE, AND IGNORE THE
NUMBERS ON THE CAP. Just make sure that the mechanical and vacuum advance
mechanisms are functional and that basic static timing is set at about 8°
before tdc.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On Jan 19, 2018 3:17 PM, "Ken Burton" wrote:

I guess I'm not understanding. Is the vacuum advance on the right side (US
passenger side) when standing behind the engine? Is the power plug in the
cap also on the right side?

Now that I asked the questions I need to go look at mine. From memory I
believe mine are both on the right side. Do NOT trust my memory.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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