A virtual Dyno said this...

273 said
To make around 600 hp at crank around 5400 rpm, it would take about 575 tq at peak hp and probably 600+ tq at peak tq.

Oh oh, cast crank and hypereutectics here, may have to tune down to 500 HP, also not sure magnum block can handle 600 HP while on nitrous
I won't forget to get an MSD 8680, dash adjustable timing, offering up to 7.5 degrees plus or minus degrees

I'm Thinking NO GO