Cutting out/misfire when coming into boost

[mgnta217]

When i start getting into boost (approximately between 3-6psi), I notice a significant drop in power and what feels like a misfire. No misfires are being logged and the problem just started recently. I have not changed the setup or tune on the truck it just appeared after hitting 10 psi. I performed a calflash of the same tune and the problem is still here. Performed a boost leak test and found no leaks. Any ideas?2230922310

[mgnta217]

2001 Silverado 4.8l
Twin 60mm t3/t4 turbos
TH400 transmission
Drive by wire
No MAF/ running speed density 2 bar map sensor(AC Delco 213-1631)
No cats
No EGR
No EVAP
No Secondary Air
Delphi 12613412 injectors (50lb @ 4 bar)
fuel system is a stock return type fuel system
static frp with no reference is 56 psi

[ProperTuningOG]

What plugs and gap

[mgnta217]

Ngk 4177 @ .030”

[ProperTuningOG]

TR6. Spark blowing out? Look at some br7ef for higher boost.

[mgnta217]

I’ll give that a shot. And replace the plug wires with better ones.

[mgnta217]

Update, replaced the plugs and found the problem.
Plug wires only have about 100 miles on them. Gonna have to reroute.
22321