Do cylinders 1 & 2 on a 340 usually run a bit cooler?

I finally bought myself a laser temperture meter. I shot the headers on the car while it was ideling and found that my # 1 & 2 cylinders are showing temps about 80 degrees cooler than the others. I realize that they are closer to the coolent intake so maybe that's why they might be a bit cooler?

I have a Weiand intake, Edlebrock heads. Thanks in advance.