i see no problems with your et goal.
the 4000 stall is ok,but a 5000 is better -worth about 1/10 on my 440.i picked up et and mph going from a 3.9 to a 4.1 gear,both with 28" tyre.
your motor doesn't know how old the 509 is,but your heads may appreciate a bit more lift.
i run 7 teens/twentys.
yes i shift at 6000
Tex

6589494-7865.jpg (36 downloads)
Last edited by Tex013; 04/17/11 07:06 PM.
New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive