I'll put in another good word for Viking. I just run their standard DA shock on mine and have been happy with them. My car has been a best 60FT of 1.41@3550lbs

The Biggest eye opener I had for DA shocks was on Drag Week 2018 on the last day. I went my best 60ft in time trials of 1.41. Much later in the day 1st round of elimination for my class I went a 1.65 and had to steer the car even, still won the round. The track was absolute garbage and with a few adjustments I got the 60s down to low 1.5s and made it down to 4 cars. I don't think there was anything I could have done to get the low 1.4s back but it was nice to see the adjustments work each round.