RE: Fine tuning

[ledman_70@xxxxxxxxxxx]

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New Holley 780 cfm, but changing the power valve is an option I never 
considered. Never changed the pump setting.
Jeff
Earl Helm wrote:
> 
> Is this thing a Holley? If so, put a power valve in it. That should 
> stop the rich at idle. Then see how much vacuum you have with 
> the Huges 509 cam, and then put the "Right" Power valve in it. That 
> should make your 1500 to 1800 stumble go away. If not, I would 
> suppect you have the Accelorator gap set incorectely.
> 
> Earl
> 
> 
> This is VERY off the wall, so ignore if stupid in your 
> case...but,....are
> your air filters of sufficient capacity to support the carb/engine 
> needs?
> Mine were not...so I had a constant "over rich"
> condition...adjusted to hell and back on the carbs...finally got some 
> help. 
> Bob Fortson
> 
> --- ledman_70@xxxxxxxxxxx wrote:
> 
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> > 
> > I have changed jetting, squirter, and pump cam. The car is running so 
> > rich at idle if you stand behind it, your eyes burn.
> > I'm going to mess
> > with the jetting some more next chance I get. The pump lever is at 
> > stock setting, just touching the adjusting nut at idle.
> > Jeff
> > tom hecht wrote:
> > > 
> > > maybe this was already mentioned, but how have you
> > set
> > > your accelorator pumps? the holley manual says to
> > set
> > > the gap with the throttle wide open.
> > > to me this is a little to agressive, i back mine
> > down
> > > a little from that, but its worth a try
> > > 
> > > tom
> > > 65 satellite
> > > 
> > > 
> > > 
> > > 
> > > --- ledman_70@xxxxxxxxxxx wrote:
> > > 
> > > 
> > > > Yes, it has vaccum advance, no, I haven't taken
> > a
> > > > reading yet. Wouldn't
> > > > be the first stick I've chased, though.
> > > > Jeff
> > > > Jim Jablonski wrote:
> > > > > 
> > > > > Well Jeff, I am not trying to throw a stick
> > into
> > > > the woods to get you to
> > > > > 
> > > > > chase it, and there's smarter folks than me
> > here,
> > > > but here's what I was
> > > > > thinking ... when accelerating at cruise load
> > > > upward past 1500 RPM,
> > > > > among other things, you are also relying on
> > vacuum
> > > > advance (if so
> > > > > equipped).  At wide open throttle (where you
> > say
> > > > there is no issue) it's
> > > > > 
> > > > > pretty much up to the mechanical advance,
> > given
> > > > the absence of vacuum.
> > > > > 
> > > > > Did the Jeg's unit come with vacuum advance? 
> > > > What's manifold vacuum
> > > > > reading at 1500 RPM?
> > > > > 
> > > > > Just thoughts ...
> > > > > 
> > > > > Jim Jablonski
> > > > > Royal Oak, Michigan
> > > > > '64 Fury
> > > > > 
> > > > > ledman_70@xxxxxxxxxxx wrote:
> > > > > > 
> > > > > > No, it was a system made for Jegs, I don't
> > > > remember the name. It came
> > > > > > with distributor, harness, control box, and
> > > > ballast resister for around
> > > > > > $140. You think maybe something could be
> > faulty
> > > > in it?
> > > > > > Jeff
> > > > > > Jim Jablonski wrote:
> > > > > > > 
> > > > > > > Jeff,
> > > > > > > 
> > > > > > > IMHO, at that RPM, it sounds spark advance
> > > > related.  What's the new
> > > > > > > ignition system ... Mopar ECU/distributor?
> > > > > > > 
> > > > > > > Jim Jablonski
> > > > > > > Royal Oak, Michigan
> > > > > > > '64 Fury
> > > > > > > 
> > > > > > > ledman_70@xxxxxxxxxxx wrote:
> > > > > > > > 
> > > > > > > > I installed a new 780 Holley and
> > complete
> > > > new electronic ignition in my
> > > > > > > > 413 in the last 2 months. I've rejetted
> > the
> > > > carb, changed the squirter,
> > > > > > > > and adjusted the timing and carb till
> > I'm
> > > > blue in the face, but I can't
> > > > > > > > get rid of the flat spot between
> > 1500-1800
> > > > rpm. When you let the clutch
> > > > > > > > out and the engine starts to load,
> > that's
> > > > where the flat spot is most
> > > > > > > > obvious. If you take off agressively,
> > it's
> > > > invisible. The engine has a
> > > > > > > > 509 Huhges cam, headers, and a 2" carb
> > > > spacer to adapt the Holley to the
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > original cast intake. I can't determine
> > > > what's causing the flat spot, so
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > 
> > > > > > > > I don't know which direction to go from
> > > > here...any ideas??? Bueller? 
> > > > > > > > Bueller?
> > > > > > > > 
> > > > > > > > Jeff Adams
> > > > > > > > 64 Polara
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > Jeff Adams
> > > > > > 64 Polara
> > > > 
> > > > 
> > > > 
> > > > Jeff Adams
> > > > 64 Polara
> > > > 
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> > > 		
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> > 
> > 
> > Jeff Adams
> > 64 Polara
> > 
> === message truncated ===
> 
> 
> 
> 		
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> 



Jeff Adams
64 Polara

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Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html. 



bOyW3N.