I learned a lot from watching and rewatching SBCWilson

https://www.youtube.com/watch?v=HF9cvi4I_OU

I am a radial tire car and look for as much separation as I can get (aka AntiSquat)

I think I would try stiffening up the front shocks some or make it have more, slower, front end travel leaving the starting line
Make your decisions on the 60 ft. times

that was a 1.45 sixty foot. Best has been 1.42. Birdtracker

Hit the little gear icon 5th from the right lower corner of the video screen. Then go to playback speed. Set it to .25 speed. Now you can watch it slow. For this video. If you click your mouse on the red line right above the sound icon you can watch the hit over and over everytime without watching the entire video. I see a few things. First the rear axle housing separates from the body and slams the tire violently. This is a result of the rear shock rebound (extension) setting being too loose. Then the tire bounces the housing back towards the body causing spin. The rear shock compresion is also to loose. With a 28" ladder bar the rear shock settings are going to have to be pretty tight to control the housing movement. Next is the front. The rebound is to loose there as well. The tire comes off the ground nearly immediately. then any help from the front suspension is lost. This makes the spin even worse. Ideally the front tire should stay on the ground 1/2- one full revolution of the rear tire. Your shocks are so out of whack I'd start there before changing anything else. Watch this video at the same .25 playback speed. It's already slow mtion but .25 makes it even slower. watch the rear housing to the body. And in reality the front shock rebound is too loose.
https://youtu.be/D3G3mR1WxjI
Doug

I agree with dvw. You need to soften the hit to the tire a bit with the shock. If you can't you need to move the bar up 1 notch.

You didn't say what ET your car runs so it's hard to say if a 1.42 is a good 60ft, but at only 3,000 lbs I would think you should be in the mid 1.3's even if you are in the low 10's.

I need more info. Power plant, converter, spring rate, is that 28"heim to heim, that's a short bar. What shocks. That's a big tire. You could be off a mile and it still hook.

car only went 9.50 at 140 mph. It will go 8.90 or 8.80 when I get the rear sorted out. I actually have the rearend out of it right now. It was tearing the lower shock mount off the rearend.I am supposed to stop by my welder guy to see what he says. I bought a Fab rearend but there is a couple issues with width of the center section is wider than my old housing mounts by an inch. If he can fix it I will go that route. If not a road trip of 4 hours will be in my future. Birdtracker

If you only went a 1.45 short time but a 9.50, then you are leaving a lot on the line, literally! You should be in the 1.2x. My truck will go 1.37-1.39 on a 9.7 and is 350 lbs heavier so you have some work to do on the short times!

that was my exact thought. I started digging into all the little things. Pinion angle was horrendus, ladder bars were down, I even found that it had bent the lower shock mount attaching points. My metal guy fabbed me up a new brace so I got a bunch of trimming and fitting. We already dug out the pucks and bar so when its ready to weld. I don't remember it being this way before so I am glad I dug into it. Birdtracker