Towing with 150HP injectors on a VP truck

I had a 01 six speed with 75 horse injectors and a power puck with a 35/40 hybrid. Towed great with no temp problems. Changed them to mach 2.5's which are 115 and couldn't hardly tow with it.

My current setup with the 341 over 3b tows great with the 125 horse injectors. I had 200's in it and just had no adjustability on the adrenaline. With the 125's I can run the 3000 tune on 2 or 3 most of the time grossing 24000.
 
I have 275 RV's and have been looking at either DDP 75 or 100's or Mach 1.6 or Mach 2. With the set-up I have know, I have to run the Edge on 3, 1 or 2 runs hotter towing a 12,000 lb 5th wheel. High altitude & a good grade I can hit egt's of 1,400* pre-turbo.

Can I run the DDP's or Mach's turn the Edge down or off, and still be able to tow in the mountains?

Last question - I have seen alot of posts that people say they get less smoke from the DDP's or Mach's. Is it alot less or when the foot hits the floor - mosquito's are dead for miles?
 
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