Hi.
First, if the wires and plugs are original, I would perform a tune up. Also, the fuel pump could be an issue. What I recommend is to perform a fuel pump pressure test on it. Here is a "How To" video that will explain how to do it and what to look for.
https://www.2carpros.com/dia/test_fuel_pressure.htm
Many parts stores will rent or lend a gauge to you or you can purchase one at the test equipment store site on this page.
Finally, has the check engine light ever come on and does the temperature gauge work properly in the car?
Joe
Saturday, August 25th, 2018 AT 6:19 PM
(Merged)