Please if someone could help with an a chassis tune that would be great
It’s not that simple. Each car handles differently so you have to tune it to your car.
Just try experimenting with the settings to see what changing each one does.
There are also other posts on the forum about people having issues with setting up their cars using the A Chassis. If you have any specific issues then try the Search box up top to see if that issue has been solved in another post.