Is this oil temp too high? How to fix?

[Dallas56]

I bought a Superformance about four months ago, Keith Craft 351W stroked. I now have about 1,000 miles on the car. All bugs resolved save for a lingering concern about high oil temp. Running around the neighborhood on a 100 degree afternoon, stop and go, with some aggressive acceleration and rpm in low gears, water temp reaches (all temps Celsius) 100, maybe 102. Oil temp eventually reaches 120, maybe 122. On a cooler day, cruising at a steady 3,000 rpm on the freeway, temps are lower, water may reach 90 and oil 100. I never smell burnt oil or see smoke at the engine. I have an oil cooler, and it is installed, with one line running to oil filter and other to engine block. My oil temp sensor is at the oil filter, not the pan. Radiator fans are in the right direction, and both are working. Smiths oil temp guage. I have researched past threads on this topic and talked to several owners, still have these questions.

Is oil temp of 120-122 too high? If so, what should I do about it? Is there a way to check the accuracy of the temp sensor at the oil filter or the accuracy of the Smiths guage? Should I replace both to make sure I am getting accurate temp reads? If 120-22 is too high and temp reads are accurate, what next? Larry Carlson