I had those same springs and they worked well. With big power, IRS cars you want it to plant the tires and keep the fronts on the ground. The old days of squat & wheelies are gone
Get your suspension/alignment lined out. Besides going 315/50/17, 0 camber alignment made the biggest difference for me. I made 902 on 15psi and could dead hook on 305/45/17 R or 305/35/19 SS. Even after switching to the 3.8 and the 315/50, I could dead hook at 50 making 23psi and 1200ish. Sub 4...
This is the one Iām running
https://atomictracksolutions.com/products/2015-2023-s550-hptuners-ngauge-mount
My buddy is using this one. It seems to work as well
https://thegaugemount.com/products/s550-driver-side-vent-ngauge-mount
See my post 2 up. They sent me the correct stub shaft and I swapped it myself. I had to pay for it, but they gave me credit when I shipped the wrong one back