You don't adjust it (the curve). You can have it done. It is done on a
machine that spins the dizzy at various speeds and vacuum
and records the advance. By changing springs the mechanical avance curve can
be modified. There are at least a couple of vacuum
advance/retards that can modify the vacuum advance.
See the web pages that Paul Tegler posted earlier today.
Or, you could just use the early distributor with the early engine and the late
distributor with the late engine.
I guess there is one more option. MSD makes some sophisticated ignitions
systems capable of modifying the advance curve
electronically.
Larry Hoy
>-----Original Message-----
>From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
>Behalf Of Andrew B. Lundgren
>Sent: Sunday, January 07, 2001 9:44 PM
>To: Larry Hoy
>Cc: mgs@autox.team.net
>Subject: Re: More Dizzy questions...
>
>
>I just realized I wasn't as clear as I should have been. Not only am I
>unaware of how I should adjust it, but how to adjust it.
>
>Thanks!
>
>Larry Hoy wrote:
>
>> My guess? If you have no smog stuff use the info for the 18GF.
>>
>> Larry Hoy
>>
>>
>>> -----Original Message-----
>>> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
>>> Behalf Of Andrew B. Lundgren
>>> Sent: Sunday, January 07, 2001 8:14 PM
>>> To: mgs@autox.team.net
>>> Subject: More Dizzy questions...
>>>
>>>
>>> After reading though Larry's questions I have a few of my own.
>>>
>>> I have an 1977 18V engine with no smog stuff, and a non-smog AL head.
>>> The dizzy I have on it is from a '70 B.
>>>
>>> How do I adjust the curve, and with my setup what is correct? Go for
>>> the settings for the 18V (but I have no smog stuff) or go with the
>>> settings for the 18GF, but I have an 18V?
>>>
>>> Thanks!
>>>
>>>
>>> --
>>> Andrew Lundgren
>>> lundgren@byu.net
>>> http://www.itwest.net/~lundgren
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