4.8L with headers, ory pipe, intake, 3500 tc, tr220 cam, 150 shot wet kit, drag radials with maybe 4.10's with some head work in a regular cab stepside be in the low 13's or high 12's

 

Sounds about right. It's definitely possible. 01Thunder ran 13.2 n/a with a tr224 in a 4.8 so I don't see why not with a 150 wet shot and a little smaller cam. Not sure on how that cam will like the juice though.

 

cam is not set in stone yet. if there is a better choice let me know