476/494 compounds?

[99coalroller24v]

Looking for some feedback back on a 476/494 compound setup on a 6.7 bored .020?

I currently have a 472/488 setup and maxed out at 1321hp. My goal is to hit 1,500hp. I would like to go the Gt55-106mm route but that would mean I would have to chop and weld on my piping kit. If I stay with a 494 I won't have to. Would a 476/494 get that 1500hp fairly easy without a stretch?
Fueling:
300% Injectors
Dual 10mm Strokers
Firepunk Tuning
Thank you

 

[dieselbeef]

if you asked lavon that he would have a definitive answer since he is tuning it....

 

[Powerstroke Cowboy]

You could also as FI since it appears to be their turbos you run and plan to run.