I'm going to give it a shot. I talked to a few that have run London Ky at 150. It's even shorter than Kil Kare. Get on the brakes right at the stripe and you have room. And for the record Norwalk has about 75 ft longer shut down than 131. I've run Milan, Mid Michigan, 131, Norwalk, Dragway 42, Quaker City, National trail, Indy, Beech Bend, Clay City. No issue stopping at any of them. Always run 145-150. The shortest of the bunch are 42 and Milan which is my home track. Kil Kare is 250 ft shorter than Milan's main turn off.
Doug