when accelerating,( @ 60 mph, i hear a BRRRR sound, and feel a little vibration on the gas pedal

Hello, if you're feeling a vibration in the accelerator pedal that coincides with the sound, it would seem that something in the throttle and engine area is resonating through the throttle cable to the accelerator pedal. It could be something like a worn or broken engine mount allowing engine vibration more than usual. It could be some maintenance wear and tear with "tune up" related items. Since it only happens at that speed and instance, it leads me to think it's a harmonic vibration and I'm thinking to inspect mounts first. www.repairpal.com/repair-shops Enlist the assistance of a shop near you for inspection and diagnostic testing.