I raced a friends' 2000 Sonoma the other night, both of our trucks are ZQ8 Ext Cab 4.3L. His only mod that I know of is a Borla Cat Back and mine are listed in my sig. he also has a 3.42 locking rear while I have a 3.08. He just put some 15" rims(yeah I know, its a crime to go shorter than stock) with taller tires on the back. We started from a stop and a friend flagged us, the race was close till about half way when I pulled and ended up beatin him by about a truck length. We both had a passenger but I'm pretty sure they had us beat by about 100lbs combined, still I was happy knowin I beat a Noma with 3.42's, we're gonna line them up again when he gets his 3.73's from Summit.