Galandorian
Full Access Member
Before my mods, my 4.8 Tahoe topped out at 97, that was with the gps on. I've had it to 127--with the gps. Was still pulling hard when I let up. Lol, just sayin....
haha nice. the 4.8L is one of the only GM engines I haven't owned yet
the fastest I've ever gone was about 130 in the GXP, but I got so scared about getting pulled over and getting reckless driving, so I try not to make a habit of it
yesterday I was on i65N and it was wide open with nobody around and an Impala SS wanted to do some pulls, so I figured I'd try it out with the Denali lol