If you throw on a Radix w/ a pulley and a complimenting cam and a good tune you WILL see some significant gains somewhere close to or more than 200 HP @ the rear wheels...

 

That's some awsome gains, but can my drivetrain handle this? It's still a stock drivetrain

 

On which s/c i say go with the magna.The prochargers are badass but require a bit more work to make them so good...while the magna is easy as hell out of the box and makes very good power throughout the entire powerband.
On you drivetrain no it wont hold up.You should be ok with the rearend as long as you change out to a Eaton locker.Not a LSD A locker.On the tranny it will go and go very fast with a s/c on it.Best bet for you is to go with a FLT level 5 tranny build that way it can hold the power your gonna be making.
And on the question regarding the stall yes you are correct.