[68racer]

Thank you Shaun,
My truck has nearly stock suspension, two inch drop front springs on a '73 clip.
The rear has coils from a suburban, I don't know if they are stiffer than stock, with two inch drop blocks. It has a longer panhard rod than standard.
I have gas shocks on the front and cheap monroes on the rear.
The 60' times have been as low as 1.66.
The truck weighs 3800lb with me on board, all the panels are glass, the doors and hood are US body so are not too light.
If you watch the video the rear suspension compresses then it unloads and then compresses again.
I aim to fit coilovers using the CPP brackets to cure this. I will also mini tub the bed and widen it so I can lower it again.
What do you guys thnk?
Neil.