May be running a bit rich. Have you tuned the carbs since the rebuild?
Sometimes when they're leaking air through the bushes you wind up setting
them rich to compensate.
Carl French had this to say:
>I have a 67 B freshly rebuilt 5 main with HS4's (rebushed). One of
>Lawrie's sport cams (timed only to the two dots lining up). original air
>cleaners, mech vac advance not re hooked up (did so late last night).
>New NGK plugs, new points, Has a problem of loading up while idling at
>lights and in traffic, showed itself in Conn two weeks ago and getting
>worse ever since. Confused by the 'getting worse part' any ideas of the
>group?
>
>Carl French
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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