Wires were changed a couple years ago, only has about 1000 miles them. Same with plugs.
However, I'll pull one at a time and inspect plugs and look for rpm difference.
The MSD has always had corrosion issues, but the rotor was changed 2 years ago. Cap not sure when, so I'll inspect.
Vacuum reading if burnt valve would be too low?
Thanks for the suggestions.
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