I'd think mid 1.30's are doable. I'm not a chassis guy either, but I've learned a lot with my own car. IMO, your intersect is way too low and a litttle long for a small block's torque. I'd move it up several inches and back a couple if you can. My vette with a 406, would 60 pretty slow with a long and low ic......once I got it right, it ran low 1.30's and mid nines in the 1/4 @ 140ish.