Just bought this 97 tahoe vortec 350 my brother has a 98. compared to his mine seems to be lacking a little bit of power. Before i got it someone put a set of standard champions in it. it comes from the factory with ac platinums just wanting to know if anyone knows anything about this. i was going to put the factory plugs back in it but i wanted to get another opinion before i paid $6/plug
- posted
20 years ago