Hi Barrie
The passenger side vacuum port is ""timed" meaning vacuum increases with engine
speed.
The drivers side port is the "full" vacuum port meaning the vacuum decreases as
engine speed increases.
Determine if the dizzy requires increasing or decreasing vacuum to advance the
timing then connect to the appropriate port.
If not sure how to check the dizzy, try using a hand vacuum pump connected to
the dizzy with a timing light at idle. Watch to see if timing advances
(increases degrees of timing before TDC) when applying more vacuum with the
pump - if yes, go to the timed port.
Sent from Bill's iPhone!
On Oct 18, 2008, at 11:17 AM, Barrie Robinson <barrie@look.ca> wrote:
I have an Edelbrock 1404 (manual choke) on my 3.5L Rover in the MGB GT
There are three spigots when facing from the front
The Roger Williams book says vacuum connection to the distributor
(D&D Delco) is the right hand small outlet facing from front and
middle one blanked off, and one the left blanked off.
My "shop" says the distributor should be connected to the one on the
right - and there it sits.
The Edelbrock Owner's Manual is no help.
So which is correct ????
Regards
Barrie
Barrie Robinson
(705) 721-9060
http://www.britishv8.org/MG/BarrieRobinson.htm
http://www.britcot.com
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