The average 408...

10.2 is not unheard of with 500HP, but it'd want to be a light car and hook briliantly.

127 mph @ 3020lbs i= 485 rwhp
485 rwhp @ 3020lbs = 10.70 et. (w/ there caculated 17% driveline loss. [904 vs 727 comes to mind, also 8.75 vs dana 60 is another, spool vs surgrip, etc]).
assuming that 10.70et was with 1.67 60ft.. what would the ET be with say a 1.37 60ft? how does it translate down the rest of the 1/4mile?
with 30" tires and 4.30 gears i crossed the line at around 6400 rpm
with 28" tires and 4.10 gears i crossed the line at around 6600 rpm
what effect would that have on ET? assuming my peak power came a 6500rpm.
well i can tell you with the 4.30's and 30" tires I got my best mph. with the 4.10 and 28" tires i got my best et and 60 ft.
seems that the 4.10 gears and shorter tire use the horsepower more effectivly then the 4.30 gears and taller tires.
getting the rear suspension to plant hard and fast is also another cosideration for ET. that would also gain et, and prolly loose some mph.. then again mabey not.

now how is it again i'll get 10's in a 3000lb car with less then 500hp? i need to save fuel lol!