car ran great and had temps of 175-184 using a inflared temp gun with spirited everydaydrives. Takig temps at bypass metal tube. I run a 180 Tstat. Now that its in the 30' get 15-16 mpg. the 15 OD knocked it from 24-26 to 20-22! Also is 2k rpm @ 70mph right for a 94 auto? slipping or not locking?