I made some test passes at local track. Got a lot of wheel hop. Emailed BMR asked what I should upgrade to help prevent wheel hop. They asked my setup and recommended I drop tire pressure to 17psi after burn out. Next time I went to the track got my best 60ft with their recommendation
I have 3.15 gear car from factory. I purchased 3.55 PP differential and swapped it out. 3 weeks in between track hits. Car ran the same times with both gears