anyone know what the temp at the headers should be on a 400sb with afr heads running 10.2 to 1 compression. I have a 292 cam with 535 int/exh lift, rpm performer, 750dbl pump. I shot it with a laser temp reader and it said 350 today. I'm trying to narrow down my hot engine issue. The readiator was 150 degrees and the heads were around 200. Anyone know I would appreciate it.