I think that is what it is...high speed imbalance or bushings. Tires are top end Goodyears and new. I will try the swaybar bushings. Seems like it is something like that or the high speed balance thing. Thanks so much for the help as usual! Car is starting great (1st crank every time), purrs at idle in gear or out, and engine is strong and smooth like it should be with 190K.