ive got a 2003 svt lightning all original just put new plugs fuel filter and oil change I check fuel pressure at idel its 32 psi and when i punch it it goes to 47 psi the problem is when it goes over 6psi of boost when driving its starts to mumble and looses power and it accelerates realy slowly. truck starts to shakes at around 3800 rpm and then i press arder on the gas and it goes all the way to 14 psi of boost on stock blower and lines blow off the egr hose going to the egr valve what maybe the problem

 

Clogged cats or plugged up exhaust

Bird