I ran that race in Top Sportsman. Yes it was hot.
Back in the early 1990's when I was racing TA/FC we had a Division Race in Bakersfield, and it was 115 degrees. It was so hot we had a bucket of water to throw the tools in to cool them down. For the life of me I don't know why they ran it.
First round I had an issue with a driver I won't name, but he did everything he could to burn me down. After the run I towed my race car back up the return road, parked it right in front of the tower, and I went straight up stairs into the tower. Rick Stewart, who was the Division 7 starter back then, stopped the race and came to find out what was going on. He proceeded to tell me he knew what was happening but didn't know what to do about it. I told him that the box he holds in his hand on the starting line has a "nice big switch on it, doesn't it? Next time use it." I think Warren Smith was the Division 7 Director then. He agreed with me.