Harry 6674 II 5760,
What is the A/R on the turbine housing?
The specs of your camshaft?
What size are your SS els?
Sounds like acceleration circuit is not working correctly.
Too much or not enough squirt? Hard to say, need more info.
That is a big turbo T6 housing is really huge!
Idle A/F ratio is lean.
MBHD
