Hi Dukersboy69,
I'd start by looking at making sure it's had a good tune-up.
How does the ignition system look? How old are the plugs, are they gapped correctly, coil pack connections clean?
Any check engine light/fault codes?
Fuel injectors could need a good cleaning also.
Vacuum leaks usually end up with a slightly higher than usual idle on these from what I recall, but worth taking a good look over the usual suspects. Anything after the MAF sensor, brake booster line, manifold ports.
Please let us know and we can take it from there to help narrow down your issue.
Thanks,
Jason
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Monday, January 8th, 2024 AT 7:43 PM