I was told by some members not to use my cruise control as it will not work with the KB. On my way to a customer’s site this morning I decide to check it anyway and it worked perfectly. This was cruising at 80 mph for over 20 miles. At first when it was engaged for some reason it made the car leap forward, but after that it was fine. I was watching my boost/vac gauge and the vacuum stayed between 15-10 in hg the duration.