well i got the 6.0 in 2 weeks ago and i got to the track tonight i still havent got it tuned still on the predator tune for the 5.3 . Put the wideband on it last week and its running very rich 10.9 afr at wot so when the interface cable comes in for hptuners i will be going back out and then back to the track and hopefully get some better times i know its got a lot left in it . cant wait to spray it lookin for mid 7's then. the last run was a 8.78 @ 78.15 mph with a 2.06 60 ft my rear end is shot to many runs with the 175 shot.

Pewter5.3 with new lq4 on motor

 

you def need a real tune, you should be trapping way higher

 

yes i know waitin on the hptuners interface cable the other one quit working wouldnt link up so couple more days they say before it gets here. thats on motor no nitrous .