Has anyone observed increased power output when oil temps (13B in my case) exceed 200 deg F?

We have heard rumors that this is true. So if it is, is it simply because reciprocating mass is getting pushed through thinner oil thus reducing internal drag and allowing quicker increases in RPM?

I want to increase power anyway I can but I also want to extend the life of the motor - and high oil temps can have some serious issues there.

Thanks,

AB