Crate motor gear ratios

I know this belongs in technical help but no one reads it there. Lol I tried. What gear does the crate motors run at the different track in Florida for the trucks. Trying to get an idea of what gears to buy for next year. Thx for any info.

we run a 4.10 R&P with 2nd gear at all small tracks but Desoto or New Symrna, we run a 3.73 with 2nd gear at Desoto, the prior owner of our truck who was the truck champion at New Symrna ran a 3.23 we twist our motor about 6600 RPMs, hope this helps