Have a RJC boost controller with stock wastgate actuator (see signature for other mods). Been adjusting boost controller and actuator for the past hour and a half and the best I can get is 23 psi. I'm wanting 25 psi. Initally I set it up just like the RJC instructions (1/8 in. back on wastegate rod). With the boost controller scewed all the way in and could only get 18psi. I shortened the wastegate rod more to 1/2 in. and streached the boost controller spring to add more pressure but only got to 23psi. Suggestions?