Caterpillar Turbo recommendations?

Trying to make my mind up on what turbo i need..C15 mbn with 600/2050 tune, 8502 injectors..right now i have a 78/132 zeke turbo..Smokes when i change gears..when i get on and accel onto roadways or when passing and step on it solid stream of smoke...90+ temp now and making it worse..Running 2004 379 flat top, flatbed...go out loaded come back empty, 85 mile trips one way.. on flat ground..getting around 5.5 mph thought i should get more..

 

I bought a new one last year from my local rad shop..some no name from Dallas..not sure of the name.....

 

no havent checked for leaks...holds about 40 lbs...local guy tuned it..pulls pretty good...but seems it is grasping for air,i see alot of haze when taking off getting up to speed..almost like a fuel haze, even when i turn on jakes it will bellow out smoke for a sec

 

around 1500