suspension

Hello i am wondering what are the pros and cons of air shocks on a basher vehicle and I'm not quite sure if they would make the truck handle any better. here are the shocks i was going to buy: Front: https://www.ebay.com/p/1401716991 Rear: https://www.ebay.com/p/23012080357

So I got a gen 2 when they first came out I have added weights inside the front wheels so far. I want to do 4 wheel steer and upgrade electronics and go brushless. But my question is how can I get more travel out of the suspension. What I want to beable to do is have the front or rear axel...