Since I went to aluminum heads on my Dart and truck, I have to be at 180 when I leave the line. 160 or lower and it will lose a tenth. The dyno confirmed that on the truck engine as well. It was down almost 15 horsepower at 160 degrees compared to 180. Both pulls were with the oil temp at 160.

Pump Gas Small Blocks Rock! 11.53 @ 116mph E85 408 at 8500 ft da, 3605 pound truck, 3.91s, street driven