ok guys couple quick questions from the new guy...one i went and test drove the 94 6.5T yesterday i noticed alot of smoke when i got in it...i know its a diesel but i wasnt expecting that much from a stock 6.5 now keep in mind the truck has been sitting on a lot, could that have anything to do with it ....and two i was told the detroit diesel had a hand in the 6.5 is this true...?? thanks for the help guys..

Try doing a search for both questions....

ok i found the answer to the detroit question but can seem to find the smoke issue

look up turbo problems in the FAQs

Yes - old fuel from extended periiods of sitting can cause black smoke, but do the checklist in FAQ's to get a reference baseline