do you guys think it would hurt a fresh & totally updated 310T engine to run at the original 4 deg. timing advance , cant seem to get this engine to quit smoking black , gave it some (maybe 2 deg.if flywheel mark is correct still just a guess what actual advance im at ) advance did clear it up some , would like to go 4 deg. & see what happens smoke wise, is it safe to leave it there at 4 degs. if it clears up black smoke? thinking of getting a diesel adapter for timming light. can the mark be off in the pump i just had rebuilt? how far do you have to go on flywheel to = 1 deg. ? Also someone had commented a 5.9 (6BT) cummins turbo will work on this engine , does anyone have exsperience doing this turbo swap?