oil pressure high

So I've recently changed out my oil and in the process I also flushed out my engine with Seafoam to help clean up the inside. The engine (i6) is running and sounding great, but now my oil pressure level is reading high. Can any other mustang enthusiasts help me assess this problem? Thanks! -Puma

I have a 98' Mustang 3.8l and the oil pressure gauge is reading between the "MA" on "NORMAL" when its usually between the "RM". Can anyone tell why it might be doing this, and what i can do to fix it. Thanks ahead of time for all advice.