I'm sending the computer out soon for a tune for the new motor. It's been(5.3)/ 6500 rev limiter with shift points just under that but with the LS6 intake and a D1 now on the 370 maybe it should be bumped up a bit. What's the consensus?

 

Mine is 6400/6100, but you have a different set up, so go higher than that.

 

on my previous truck I had it at 6700, so you should be able to get a little more than that since u have more mods