I've visited Wheels Thru Time many times. I'd say two to three hours will give you plenty of time to have a good look. I've also visited Barber near Birmingham, AL. Same thing, two to three hours. Barber has motorcycle only parking directly in front of the main entrance!

018 Wheel Thru Time Maggie Valley NC.jpg023 Wheels Thru Time.jpg2017-05-18 4 Barber Motorsports Park.jpg2017-05-18 5 Barber Motorsports Museum.jpg2017-05-18 6 Barber Motorsports Museum.jpg