I had lingenfelter gt2-3 in another truck and that cam kickedass from what I've read it seems that ligenfeter is putting gt9 in all there new projects if they think its good enough for them then I think it will work for me the only real concern is they use it on cars I haven't seen it used in a truck or suv

 

If you're stuck on Lingenfelter, their GT11 would be a much better fit in a heavy assed truck. There's no reason to have a 247 duration .650 lift exhaust lobe on a street cam. Your money and your truck though. With enough early on boost, just about any cam will work OK.