Well i can tell ya what i did to my shelby dak, don't know about rams though.

It ran 10.1s in the 1/8 almost bone stock. Just a K&N drop in and a little ram air.

Granted it had 3.90 gears and an lsd, but it was still heavy. 1/4 mile i have no idea, it was almost running out of steam by the 1/8th.

Now to get it to run 8.9s in the 1/8th took a big shot of nos. Cheap and fun in high school.