Re: At last....
VF actuators are not adjustable otherwise you could tighten it to help hold boost.
Are you running a 2-port or 3-port OE solenoids or an AVCR ?
A 3-port may help, but my VF28 also drops at the top even on a 3-port.
The VF's need a fair amount of duty at the top end to maintain the boost, unfortunatley a PFC doesn't give you the option to set per Rpm.
What boost you running and holding at the top now compared to before ??
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