[s-cars] Allen Screw for Wastegate on AAN or others...

[Brian B.]

What advantages are had by turning the screw? Technical advantages, 
cause I have mine turned down about 6 turns, and I noticed reduced lag, 
and harder consist pulls, my car does flutter however, and have not been 
able to source that down yet, I have replaced BPV check, and cleaned all 
connections, plus IC to no luck... Also, what can I check next for the 
flutter, I was once told there was a device on the firewall under the 
plastic cover that could be to blame...

TIA