I am hitting fuel cut at 9 psi(autometer guage). I don't know if this is related but my egts are a little high. I have a full 3" exhuast, intake mhg and joe p. mbc. I have replaced the 02 sensor, blow off valve, checked all of the hoses for cracks and holes,rips, lose fittings ect. If I have the factory hose on the actuator it runs fine 7psi. But when I put the mbc on and turn it up just a little bit I hit fuel cut. I don't know what else to check. Can someone please help me? Thanks