Hey guys i posted about this a little while back. My car is hitting boost but it feels like it is holding back. It wont pull as it builds boost. You actually feels like its slowing down as it builds boost. A while back people told me its prouable in the tune, so i bought a safc and a aem wideband and tuned the car to some conserative afr's. It was running really rich and some areas and really lean in others but now the afr's are all good. But the car still does the same thing. The car will pull like it should when its in vacume on the boost gauge, but when it gets into boost it just wont pull any harder or less. The setup is a 50 trim, fmu, warbrol 255, and fuel cut defender. Any ideas?

You have a boost leak.