98.5 auto serging on pl 2 & 3

loss of power on pl 2 and 3 has serging low egts good fuel pres only does it on pl 2 and 3 pl 1 works awsome

quadzilla xzillradier
fass
bd twins
billit trans
i was told it has 150 hp injectors but i dont think it does (seller lied alot!)

when im in od and lay into it on pl2 or 3 it feals like the power comes on for a second then cuts out repideatly.
any ideas