Sorry another 408 hp guesstimate (choosing Fitech system)

baracus said
500hp without nitrous

I run a 408 with 9:1 CR
smaller cam, 1.5 rocker ratio and massaged stock cast heads but arguably a better intake (wieand action plus)...and I'm putting out 420Hp and 470 pounds of torque

so 500 seems doable from your combo