what psi are you running w/o nos? I think you dyno'd 700+rwhp w/o juice iirc. But you're 10+mph slower than my trap in 1/8 and 1/4 mile, even when I took it easy on the pass. Are you short shifting? Those TD06 needs some higher rev range (8k+) :)
1990 Nissan 300ZXTT Twin Greddy TD06L2-20G 745rwhp 593rwtq (26psi no nitrous) 10.9 @ 139mph 1.75 60ft Waiting for stronger wastegates spring