Duramax Diesel truck Vs Ford Lightning 351

This black GMC Duramax Turbo Diesel truck has been running at the local tracks during test and tune busting off low 13 second passes every time. I have seen a couple 13.1's and I know its close to a 12 second pass which I hope to catch on camera! It has minimal black smoke, but it really moves out the hole, check out this video fro my Youtube Channel!