And in Western NY ... try US-62.
Thanks for the news about NY-67. I hope to enjoy that route some day.
If you need to travel between Buffalo and Pittsburgh, consider US-62, which you can reach several ways. If you connect with US-62 in Hamburg, you will get a glimpse of a pretty and historic town. Then US-62 is very pleasant, with a great variety of scenery, including towns, farms, Amish carriages, hills, curves, and when you get to Pennsylvania, the Allegheny River. Much of the road has been freshly paved, and the rest is pretty good. This isn't a place to test your limits of traction, but the curves will provide plenty of fun.
In Warren PA there is a Quiznos restaurant which provides a fine break and good food in very clean surroundings. If you are hungry before you get there, you can find a variety of fast food in Gowanda NY.
By and by, US-62 heads west, and it's equally good in Ohio and Kentucky, but if you are going south, choose I-79 or take PA-8 from Franklin.
I hope to travel US-62 on July 31, and I hope it's as pleasant as it was in the rain on April 28. Alas, the bike will be on the trailer, because this is a family outing.
Now back to your regularly scheduled program.