340 x-block vs. 410 stroker ?

Because at 11.80ish I can keep the clutch soft and use a DOT tire. If I can't make it hook, then I need to use a slick, and then I start tuning **** up in the can and before you know it, it will start cracking the B pillars and breaking the rear seat bracing out. Although this pig has a fold down rear seat so it may really junk the B pillars.

I don't want sub frame connectors although it could probably use them now. I want to keep the car as close to a day 2 car as I can.

My math says at 3500 pounds with my lard *** in the car (haven't weight it yet but a 73 A body with the fold down rear seat and sun roof can't be much lighter than that) running almost 110 MPH showed about 350 HP. With the cam change and a little better port work I should be 385 MAYBE 390 HP and that should be 11.60ish and I don't even want to be near that.
And my calculations by My Time Slips and stuff have me at about 379 horsepower or so