Hey guys just traded for a 1994 2500 4x4 its only got 195xxx miles with a built auto trans. The motor has 191 dvs and 370 marine injectors and no plate.the truck runs strong but like in first gear if im into it anything over 2500 rpms it starts cutting out and it smokes like a light blue or white really cant tell. Its got gauges and im carrying a good 30lbs of boost.

 

Check your timing and fuel pressure.