I have been struggling with idle surge in gear, and getting any kind of head temperature above 120.
Even going as lean as .8 GPM at 1900-2100 idle speed i can suck down a full fuel cell of 8 gallons in about 5 -6 minutes and about the warmest i can get the head temp is 118 degrees. This also milks the oil pretty quick as well.
I have new racepack head temp sensors and they are mounted in the threaded holes dead center between 3/5 & 4/6 below the exhaust ports on an AJPE BBC billet head....
Head Temp / idle surge in gear