Hey all, first post, I’ve come here for help as I can’t find any information elsewhere. I recently purchased a Blitz SBC type S and installed it on my r33 GTST. Car is almost completely stock except for exhaust and filter. The issue I’m having is my car boosts to roughly my target (12.5-13 psi) and then falls off in the high end to around 4-5 pounds of boost. The controller has 3 settings, duty, gain, and p gain. Has anybody experienced this or have a set of settings that works for them that I could steal? There’s next to no information on the internet on this particular boost controller and the translated manual is basic at best. Thanks in advance