Top Fuel Friday

I have an autometer oil pressure gauge on my GT. I also have a high volume oil pump. The sending unit is connected to the filter housing where the stock oil pressure unit is located. I have a brass T that lets them both read the oil pressure.

When I cold start my car the oil pressure reads 100 PSI for a little bit until the oil begins to warm up and then it is around 20-25 at idle and 65 psi at cruise. I just wanted to make sure the high readings at cold start aren't anything out of the ordinary.