my profec A hlods boost nicely. if i need 1.2 bar, that is what i get. the only problem is that anything after 1.2 bar, the profec under boost. ie. to get at 1.4 bar, i need to input 1.6 bar and at 1.6 bar, i need to input 1.8 bar. after that it does not boost any higher, even though i got a 12 psi wastegate spring. anyone has this problem?

 

hey would u mind taking pics and showing me how you hooked up your profec A?
Show me where each VAC line and where it goes.

Thanks man