With a #100 plate full forward, you should be running plenty of boost. Yes, having enough fueling will be needed to create more boost. You could think a boost leak is possible. Yet, with 26 said pounds you are getting some good boost.I have a 97 12v and I've got starwheel cranked, #100 fuel plate slid forward, bhaf and a boost elbow. From what I hear, the boost elbow is supposed to control the boost that is produced but no matter what I do I can only top at 26 psi. Am I doing something wrong? A buddy said I'm not moving enough fuel to make more boost, is that true? What can I do to make more?
I would be looking at the fuel pressure as your first avenue of tracing. What is you fuel pressure? Of course, the fuel filter and per-filter needs to be clean! Also the OFV needs to be working properly. You can search for articles on testing that on here.
Also, make sure you are not actually getting more boost that you may not see it peak at. When i first put my gauges in i only thought i was running the high 20's also. It wasn't until i set my max threshold to 35 psi with a warning alarm that i realized i had hit it. I mean, you can be moving pretty quick when these trucks boost that much and you have to take your eyes off the gauge to watch the road at that point. Honestly, i have to set the warning alarm on my gauge to make sure i am not hitting a higher number that what i visually see. :thumbsup: