Hello,
You do not say which carbs you have but what you ahve done is change
the backpressure of the system. Its flowing more at all RPM's so maybe this
has caused a lean-out condition at lower rpm's??
Daniel 69 2000
` SF CA
> List,
>
> I had a new exhaust system installed (from the manifold back). I had the
> resonator removed and I increased the pipe diameter to 1 3/4". My 68 2000
> was tuned and running well just before the work was done. Now the
> car...well...feels different. It hesitates when cold and won't idle until
> fully warmed up. When it is fully warmed it does run quite well, lots of
> power and sounds good. But it just doesn't seem to be as "in tune" as it was
> before. What would cause this? And what can I do to balance things out?
>
> TIA
> Craig Odell
> 68 2000
> 67 1600
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