That cam won't give you the sound you're after. IMO it's really not a good choice for you. It's too mild to really have that rumpety rump sound, yet it's too aggressive to really be good in a 6000lb 4x4. I ran the lunati cam that was one step higher than this one, IIRC it was 226/234 @050 on a 110LSA. It had a small amount of lope and even with open headers it didn't sound impressive. In a big vehicle like this, I don't think I would be looking to squeeze out ever last drop of compression either if you don't want detonation problems.