I spoke to the tech support line at Canton today. They were very helpful. It turns out that the 351W pan for Cobras (#15-660C) is a 6 qt pan. This includes the filter. Using a 2qt or 3qt unit with this smaller size pan and a high performance
oil pump can cause your
oil level in the pan to vary drastically if you use the suggested 7psi precharge. Canton suggested using a higher precharge pressure (~20psi) to effectively reduce the capacity of the Accusump to minimize the
oil level variation. I described my low pressure condition and he thought for sure the crank was aierating (sp?) the oil.
For now, I'm just happy to have my oil pressure back and am going to leave well enough alone.
Chuck