Just a thought, but I have heard a sound that was a definite "chirp" coming from a small leak around the base of my carb, I even think around the throttle shaft. Whatever it is, do you hear it at idle with the hood open and your ears in the engine compartment?
Karl

It may not be the easy way, but it is the Cowboy Way - Ranger Doug
Beware of the stories you read or tell; subtly, at night, beneath the waters of consciousness, they are altering your world. - Ben Okri
1953 Chevy 3100
1960 Volvo PV 544
1941 Chevrolet Special Deluxe