RE: Distributor Modifications

["Westerlund, Ken" <kwesterlund@xxxxxxxxxx>]

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Don and all,
Well I opened up the distributor in order to modify it as per the "Old
Reliable, Mission Ignition" chapter and low and behold the distributor
has an adjustable mechanical advance.  There are two screws that can be
loosened and a plate turned to limit the amount of mechanical advance.

The plate was set for the full travel and I adjusted it to reduce the
amount of travel by about 1/3.  Does that sound about right?  Also,
there were two fairly small springs in there, but since the weights
looked smaller too I left them alone.  

Thoughts?

Regards,
Ken 

-----Original Message-----
From: Don Dulmage [mailto:big-d@xxxxxxxxxxxx] 
Sent: Thursday, January 20, 2005 7:12 PM
To: 1962to1965mopars@xxxxxxxxxx
Subject: Re: Dist mods

Ok . 218 is fairly mild so it may be ok. One trick that you can try for
MPG
that sometimes works although not always so you have to ex[eriment. is
to
set up the advance curve to what the engine wants mechanically then hook
the
vaccum advance to manifold vacumm. (check to see if has vacum at idle,
that
is manifold vacuum.
Under light throttle which is high in manifold vacuum. yu will have the
extra advance but when you stand on it manifold vaccum will fall to zero
and
the vacuum advance will be inactive. it iwill take some playing to find
what
works best but I have done it on Brank X for my bowtie buddies.
having said that I must say that my 63 with the 400 I had in it,, with a
310
duration (adv) and 525" lift did give 14.97 mpg (Imperial gallon. (which
is
5 american Quarts) on a really long trip with 3:91 gears.
I thought that was more than respectable. It had full mechanical only in
fact it had the distributor in it from my Old Relaible 440 , the one
described in the book. That same distributor is sitting inthe 426 wedge
currently occupying the engine bay.
Don

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