ok I wrapped the temp sensor and the crossover pipe. neither did much to lower temps. I flushed my cooling system bled all air still same problem. thinking about this it all started when I put the headers on now I'm wondering if I am running lean. my fuel trims have been pretty good useually + or - 2 to 5 sometimes more but not for long.and I have no knock and i also replaced a broken coolant elbow. this has me stumped anybody got any other ideas?