I am looking at buying a truck that looks to be a pretty good deal but only has the 4.8L in it (2003 Chevy 1500 Z71 Ext) and not the 5.3L. I dont tow my boat very much (87 28' Saber roughly 7,000lbs) but how much of a dog is the 4.8? It does have a superchip in it and also the K&N cold air intake sys.
Any comments would be appreciated. THANKS