Avery do you know the sping rate of the Skyjacker coils and Deaver progressive coils?
Search for it as it is here some where. I think Andy (Crash) posted them years back. I seem to recall the skyjackers 220-240 though.
FWIW, it was the Skyjacker (8's) that the old BOTW crew mostly ran back in the day. They were the best for both worlds (high speed and rocks).
EDIT:
http://www.naxja.org/forum/showthread.php?t=87497
Andy says 235-240