Hey all, been away from the forum a while.
I have a 5.3 Yukon XL, it is anemic as you can imagine. I did a DOD delete with a 206/212 112 cam, eliminated VVT, and added headers. It picked up huge gains at 3500 and up but still very anemic down low and it's not very fun to drive because you have to rev it so much.
I just picked up a stock L94 6.2 I am going to drop in. I am planning on eliminating the DOD, but I am torn on whether to do the VVT or not. I want the throttle response 1500-2500 to be much snappier than current, so I was thinking of going the VVT route, getting a cam with like 6-8 degrees advance ground in, then tweaking the tune. The only thing I am worried about is the fueling for VVT looks very involved, like it would be impossible without hours on a dyno.
I have no issue going plain 3 bolt non vvt setup if I can still have a snappy throttle response down low with the 6.2, but if its like a 40 ft/lb difference, I'd prefer vvt.