don't try adjusting the timing yourself if your not sure what your doing.it could be a lot cheaper to just have someone do it for you.hardly worth paying someone with a meter for though,if you don't replace the ip and injectors first imho.that's kinda like paying a shop for a front wheel alignment with bad front end components.
if your already smoking,the last thing you want do to is turn the fuel up more.
make sure the CDR and air filter are clean,and that the muffler isn't plugged up.with her smoking blue though,she likely needs a full tune up.it's going to cost $.so just run it,or research a lot on how to fix it yourself.which will still cost $,just not as much lol.
this is a good place to start; http://www.ford-trucks.com/forums/10...ning-info.html
♠'93 F-Super Duty (F450) XLT 1st Gen Navistar 444ci IDI Diesel, E40D, 5:13, 16' Dump♠
♠'93 F250HD XLT 4x4 1st Gen Navistar 444ci IDI Diesel w/ Intercooled 2nd Gen Banks Sidewinder Turbo, Built E40D, 3.55, Dually, 9' Dump, & Plow♠
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