It's a 1990 put a ark design abc ebc it doesn't seem to regulate it. I tried calling ark and the phones a disconnected! I'm trying to get 10psi out of it set at 10 on the boost controller I'm only running stock boost I kept turning it up and it's set at 32 on the controller and I'm running about 8psi. Even then it's not always the same sometime it will hit 12 and the next won't run over 7. Any ideas?