I am new to the adjustable shocks too. I just put Strange coil overs on the rear this spring. The front has 90/10 struts. My all time best 60' went from a 1.58 to a 1.56, but I still don't have the consistency I'm looking for. I still get some 1.6s. I've set them stiffer and softer, but I really don't have a handle on it yet.

Does any body have input?

You set the shocks firmer to slow the rear body lift. If you set them too stiff, you'll limit seperation but may lift the tire off the ground too.

Generally you want the passenger side stiffer than the drivers side. Start with a setting of 1 left, and 2 right. If the car goes straight and the body seperates too much, then try 2-3 etc. You want it as stiff as the track will hold it. If the track's traction is poor, loser settings with more rear seperation may plant the tire better because it won't hit the slicks as hard. The hit is being used up by raising the rear of the car instead of planting the tires.

How's that? Clear as mud?

Video the launch and play it on slow motion. That's the only easy way to sort out what's happening. You can make the rear rock solid with the shocks, but unless the front raises quickly and the track has great traction it will blow the tires off it. It's trial and error, but at least knowing what the adjustments do will help you sort it out. Good luck,

If your tires aren't spinning, maybe it is a converter problem?

Sounds like a good plan.