STM 60Y with 290-300hp

[justin1620]

Hey guys, I’m going to try out 3 different weights and compare the top speeds...23/37 gears, a few different springs, 41/35 helix. heavy hitters, STM 60Y and Daltons. So far I am very happy with the heavy hitters at 285-300HP. Does anybody have a baseline to try the STM 60 Y at around 290-300hp? 137”, 1” track

 

[Kingersrx]

Tungsten heel, 4 washers mid, tungsten and 4 washers tip