2000 2ws

I just picked up a 2000 379 with a 2ws 550 with a 18 speed and 355 rears. I run between Colorado and Az. and seen on here that the older electronic cats don't like to be lugged down much. This is the 1st cat I have owned and would like some insight to this. I haven't pulled a load yet hope to be heading to Colorado Friday so I would like any and all advice. I have been a O/O for 16 plus years just 2 other trucks but neither had a cat. Have plans for a PDI manifold and turbo and a Mr. Haney ecm upgrade after I get a few other things done. Thanks in advance

 

I didn't know a 7cz was even possible. I'm really looking forward to that 1st load more so than ever before to see what this will do right out the box. Thanks for the reply.

 

Yes. I have heard some people say the new ones can lug down to 1000 ok but not the older ones. I don't know if even 1100 is to low.

 

Thanks all for the replys.
I have never been more excited to take a truck out and work it with a heavy load.

 

Just did 1st load, gross weight right at 80k from Az to Co right up 25. Truck pulled good although I thought it would pull the hills a little better, I might have had to high of expectations. Thing runs down the road at about 170 which seams a little cool for me, is that normal? EGT's stayed around 800-900 most of the time peaked at 1100 if I keep on it. Oil pressure 70 at 1400 RPM. Haven't checked mpg have to play the weight game with this truck so will have to see how heavey the next load is before fueling.