I'm going insane! I went for a drive varying speeds 20-50mph long straights, curvy roads, maintains 150-160 temp about 10 miles. Outside temp is 85, cloudy. If I slow down or stop at a red light, temp starts creeping up to 175. Pull into my garage, after 5 minutes reaches 199 (ac on all the time 40 degrees output), I can turn the AC off, but doesn't seem to make that much differenc. So, as long as I don't stop I'm ok. The solid fan seems to help but is rather loud like when shifting reaching 3-3500 rpms.
I do have the other flex fan coming, and could start on fabricating another shroud.