I have a question about gearing for the strip.

Yes, I definitely don't want to be at that rpm. I worry to much and gaskets aren't cheap anymore.
I think the 4.10 gears will get me there with a almost 31 inch tall tire.
Calculator says 6100 ish I believe. I'm not afraid of running it out to 6500, it's still making good power.
But I don't know how accurate the calculator is.
Still going to talk to ptc first before I put any gear in just in case they have something to say.
Just make sure you factor in converter slip. Most calculators don’t.