lowering 60 foot time

I cant "relook" at the video..my work's firewall wont let me go there...lol. but, lookig at the stance of the car in your pic..The nose is very low..Try raising up the T bars a turn or two. Your launch is very soft (that much I remember) for a big block with 3K stall and 3.91s. You have the plain spring in the secondary? Id try the purple and tall yellow in that order, and see if it bogs..If it does, go a little bigger on the squirtor to see if that fixes it. Also, as Ron said, check pinion angle. When you can get the car to move on launch, then you can set the snubber if you run it.