Sounds like your cloging the converter. The poor performance you are
experiencing could be from back-pressure. This could lead to a fire. One of
my friends in high school put a big holly carb in his monte that was
running too rich. One morning he came out to find his windows had been
tinted. The cat burned through the floor and torched the inside of the
car.
On Tue, 26 Sep 1995, FRANCIS J. URICCHIO M.D. wrote:
> In an effort to undo an exhaust travesty foisted on me by DPO I put a new
> catalytic converter in my 79B. The car now runs rough when on fast idle which
> it didnt do before - and seems a bit louder when on fast idle as well. When it
> warms up it runs more smoothly and quieter. The thing that bothers me is that
> the converter turns red hot and even turns the pipe it is connected to red as
> well. When I took it for a drive, parked it, and looked at the converter it
> wasn't red anymore. The car runs fine when its warm. The plugs show some black
> deposit. I suppose it is running rich and heating up the converter. Is this a
> problem? Any suggestions? Is the car going to burn up?
>
> Chip Uricchio
> Wallingford, PA
> uricchio@cvi.hahnemann.edu
>
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