After I started this thread, I contacted FF for their suggestion. FF suggested the 1.06" for spirited driving and ride compromise. FF said that the 1.12" are for racing and might be too harsh on a street car.

I am still looking for opinions from those who are driving on 60 series tires.
Thanks everyone!


1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)