The only 3.0 I know of in March or April is Rudys diesel event I believe it's March 15th and it's gonna be a long drive from Wisconsin to North Carolina for you but it does pay $3000 for first place. The first test hook we really get in NE Ohio is May 3 in Wooster Ohio it's kinda a test and tune because you can usually pull a couple different classes.
I would be weary of testing on a southern track. May be a different material than your used to
Indoor pull in Harrisburg pa is a 3" class but I think it was a pre register deal, not sure!
Rudys was an awesome red clay track!!