some are stock some are not

scott's 13 had 370whp and went 120 (stock SR block)
greaser's 13 had 430whp and went 130 (mildly built SR block)
kenjuku's 13 had 393whp and went 127 (stock SR block)
duy's 14 had 500whp and went 137 (fully bilt KA)
psijay's 14 had 414whp and went 125 (fully built KA)

more from greaser:
457rwhp @2580lbs...2.0 60ft 11.66@133 (mild build SR)
396rwhp @2570lbs 1.4960ft 10.91@123 (stock SR block)
357rwhp@2580lbs 1.5760ft 11.39@119 (stock SR block)