70 340 HP handling ability.

Hello guys and thanks in advance for the help. I am wanting to build a 340 stroked to 426. I have a good 70 340 block with std bore. I have milodon 4 bolt splayed main kit and a hughes girdle kit. I'll be using a Milodon 7qt oil pan. 234 242 cam. It's a street daily driver.9.5 or 10 to one comp. I'm thinking about adding a torquestorm supercharger down the road and am wondering if my block will hold up to the 700 hp level that this combo could achieve. Any help and insight is greatly appreciated.

Don
1st and foremost...Precise machining.
Studs on all mains/girdle optional
1/3 block fill
.020 over would be ideal of not std. Thicker the better. Sonic test and sleeve any thin thrust side cyl.

The 70-73 blocks are my favorites for building big power. They are cast with reinforce bossing vertically in the center for more rigidity. Imo they worked any casting/core box kinks out by these yrs.
I have a june 1970 340 motor I run.