i just bought a 96 cc 4x4 3500 dually,6.5 heres the problem just drove the truck home 90 miles,idles ruff, but runs smooth till 1300 rpms then dead spot till 2k and goes like heck and black smoke till i let off...no check engine light ???? any ideas

 

you need to post your question in the proper section for a better responce.This is the introduce yourself section.
BY the way, what brand truck do you have?

 

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