Screech at 70mph.

Valiant63 said

anxiously awaiting the results of your test ride

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I turned onto the freeway and as I was coming up to speed I heard the screech for a split second, I glanced at the tach and it was at 3Krpm. Then the noise seems to be just as before. I kept my window open and I think I heard it differently than thru closed windows.
It was more like a whistle/screech as opposed to only a screech.
This leads me to believe that it is either a anomaly in the grill or some part of the front end of the car. Or it may be in the carb as suggested before.
But I am pretty certain it is not a wheel bearing, or the belts. Either of which can leave me stranded. Where as the other possibilities are a nuisance as oppose to a break down