If you want to play with the weight on all four corners, adjust the ride height and springs, for spring height, and even testing for wheel size & offset/back spacing. I made a threaded tubing tool with heims at each end.
Take off the shocks and place these on the mounts. You can turn the alum. body to raise or lower the car on each corner until you get it sitting just right. I also borrowed a set of electronic scales and I was amazed,.... on how off each corner was and different. Now it's almost 50/50, even with a big block.
You can make the cheap or you can borrow mine. It's one of the best things I've done on my cobra.