Throttle Cable for super six

I need some advice.I installed new leaf springs and shackles in my Valiant. As you can see by my profile picture the car was lower on the drivers side. After the new ones were installed the drivers side is still lower, the car is higher now, but not even. Its driving me crazy. Any help would be appreciated. I thinking maybe a lowering kit, but the uneven high wouls still be there, I think.

On the the super six upgrade I did, I had to send it to a mechanic. They got the new gas pedal assembly going. But the cable is long and doesn't seem to respond correctly.

I was wondering if it possible to shorten the cable? And the bracket that holds the cable doesn't seem high enough. I am somewhat regretting converting it.

I wants excede my talent level...................again.