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While making a nuisance of myself at two of the local speed shops here is what I was told.
The base of the problem is the amount of overlap in the 303 cams.
The cams were designed to be used with EFI. They work well in this case because of two major conditions.
#1 the idle fuel is regulated by the computer thru readings from
the 02 sensor.
#2 The EFI has a much larger air plenum than the Edelbrock
intake I am using. The smaller plenumis causing unaccurate
signals to be sent to the idle circuit in the carb.
Solutions suggested.
#1 Retard cam by 4 degrees would help.
#2 Cut small pieces of a large paper clip and insert them into the
idle orfices? This will restrict their flow. Ok sounds logical?
I tried what the suggested. First a large and then a smaller one. No luck the engine refused to idle both times. I remove the pins and I am back where I started.
I have done everything suggested with the exception of changing the idle air bleeds? I have no idea what or where they are? Are they where I inserted the paper clip?
Thanks, but I need more help!!
Bud
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