Hopefully someone running predator there will chime in, but based on all the other info a 19/61 would be good starting point, If it's pretty much stock and your not looking for over 5000 rpm. I'd have an 18 driver along with me and depending on the time of year a 20 driver as well.Predator 375 gear?
Awesome glad it worked out and you had a good experience !! Feel free to contact me anytime not that I have any experience at that track but if your having an issue we can most likely sort it out.thanks racing promotor your suggestions were spot on we had a great time there met alot of nice people and the people that run the track were great and very helpful