I've got:

98 civic dx d16
t3/t4 garrett, intercooled, vortech FMU, walbro 255 HP fuel pump, integra injectors, timing 16 deg. I'm also using the cheap check valves (3 of them) b/c I don't want to spend the money on a missing link if I don't have to. stock ignition also (getting msd ignition next month)

ok I get to 5 psi by 3000 rpms and it holds steady 5 psi, I'm running a lil rich and then I get to 4500 rpms and my car feels like it just dies. It doesn't shut off; it doesn't make any weird sounds, it like when you hit the rev limiter. The car just stops accelerating.

Is the map sensor reading boost?
am I detonating?
Any help would be appreciated.

Thanks