RE: Fine tuning

[ledman_70@xxxxxxxxxxx]

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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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