Another vote on a 180 deg. thermostat. Sorry no help on the chirp. Being a procrastinator at my core, if a problem doesn't smell too serious, I usually give to time to mature to the point it's easy to locate.
RonR
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
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