Have not considered the fuel filter. Only have 50,000 miles but it is still 26 years old. The quality of fuel is an issue. I try to avoid ethanol fuels but not always possible. This car has part time usage as it is stored for 3 months at a time between being driven for 3 or 4 months. Purchased 3 years ago with 35,000 miles. I don't think the previous owner had the filter change but I have all the service records and will check it out. Filter is cheap and I will replace just in case.
Thanks for your input. If it solves the problem I will post result.

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Handyjay