2003 5.9 tuning with smarty tssr
 

Looking for some advice on tuning with smarty tssr on my 2003 5.9 cummins. truck has 64mm turbo, built tranny, 100hp injectors, lift pump and stock cp3. currently builds 45psi but on long runs my egt has hit 1600 which scares me. Lots of smoke down low and taking off in traffic is impossible without a cloud. fuel mileage is 18-21 depending on driving conditions. Anyone with similar set up that can help me out? thanks