I have the same question. Now I recently found a chart on someone's web-site
that says the 77-80 45D distributor uses the ported connection off the
carburetor, not the manifold source.
On my '78 this vacuum line runs to a switch on the pedal box and I beleive is
only supposed to be activated in 4th gear. Can anyone confirm this?
Thanks,
donny v
1978 MGB
In a message dated 4/16/2004 2:51:10 PM Eastern Daylight Time,
doddk@mossmotors.com writes:
>
> Subj: RE: which vacuum source...
> Date: 4/16/2004 2:51:10 PM Eastern Daylight Time
> From: "Dodd, Kelvin" <doddk@mossmotors.com>
> To: "Marc" <smarc@abs.net>, "Mgs" <mgs@autox.team.net>
> Reply-To: "Dodd, Kelvin" <doddk@mossmotors.com>
> Sent from the Internet (Details)
>
>
>
>
> Marc:
>
> The original 45D distributor in your car, should connect to the manifold
>source on the twin HIF manifold.
>
>
> Kelvin.
>
>
>
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of Marc
> Sent: Friday, April 16, 2004 11:37 AM
> To: Mgs
> Subject: which vacuum source...
>
>
> I looked back over the archives, but didn't come up with a firm answer to
> this:
>
> I have an 80' B which has been converted to dual HIF's and old style
> exhaust. Has the 45D distributor with the factory CEI electronic ignition.
> Do I want to connect the vacuum advance line to a restrictor off the
> manifold source or the ported connection off the base of
> the carbs?
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