I would rebuild the car put it back to stock settings using the medium t-bar or the carbon fiber berserk one. Since you are switching to Asphalt I would start fresh this car will tear it up on an asphalt surface with the stock settings the only thing you will really need to change is the rear spring play with the Lube in the rear damper and adjust the front Springs I would use pit 571 572 combo works the absolute best especially Outdoors. I would definitely use the kit front end that came with it and if you want to change the steering characteristics mess with the tie rod outer ball settings on the front upright start on the outside closest to the rear tire and move the ball stud in if you want the car to be more aggressive you can also use the trailing axle as opposed to the inline axle on the upright trailing will make the car a little easier to drive and smooth it out depending on your surface this car is fast I have been racing it for a while it is extremely smooth and predictable if you've been using your front springs for more than 2 or 3 months they tend to wear out if you took a used one off and compared it to a new one you'll notice it's about a millimeter shorter so that's something that can mess with the handling overtime make sure you put on new front Springs every 2 or 3 months have fun good luck this car loves asphalt