Drag racing setup vs Street Rod? Shocks or ??

I think you're working backwards, you should be looking to why you have good traction.
With 512 CI , you should be spinning through all three gears.

Perhaps I am. In Idaho the weather will be cold for another 3-4 months. I would consider this a winter project prepping for the next season. If nothing else, food for thought for me in advance.

I do know we are at over 500 hp at the crank. The last race was a dog but we have made tremendous progress with the tune and got an exhasut leak fixed that was causing misread but the O2 sensor as well. Also the cam was installed 8* retarded in that video. I corrected the cam timing since then. I suspect we will be traction restricted in the future. Part of the bad tune I mentioned before