No one ever posts timeslips of their turbo charged crew cab silverado so here you go. Still need to turn boost up to 12psi but here is how it sits at 7psi full interior subs, and 22" rims.

1st run Vs a TBSS on a 75 shot (supposedly)

Vs TBSS 75 shot - YouTube

2nd run Vs a WRX STI on 14 psi. (supposedly)
VS WRX STI - YouTube

Time slip

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Look like your running great for low boost. My bone stock 6.2 with a muffler and 10lb of boost went 12.25 1/4 7.90 1/8.

 

That's where I wanna be. 12's in 1/4 n high 7's low 8's at the 8th