Thats right, and so have i, half that long though.
No need to block fill unless you plan on turning rpm's higher than that crank will handle to begin with.
Where are all those nay sayers now? ;)
I don't want to push this one much past 6K. Time will tell though. The msd box in my Dart has a 6400rpm Rev pill in it now and I have accidently bounced off that with my current 318. Oops.