Conversation Between Wicked69 and Portworks

Looking for 70mm on3 turbo advice on my build if you can help.
Iron billet 6.0 317 heads 9.8 comp. Intercooler and meth inj, pump gas.4l80 (no stall yet) 4:11 gear 28 tall tire in a 68 c10.
For the street looking for 8 to 1000 rwhp, will the 70mm turbos be a turd down low ? Thank you for any advice.