Here is the basic rundown. My cousin decided to do a swap on his 87 c10. Nothing special. van 6.0/ 4l80, etc.. 100% stock. even has stock truck manifolds. after his first time out trying to figure out traction and what not he managed to pull off a 13 flat.

Fast forwad 3 months. he scored a great deal on a th400, with a high dollar valve body and a 3800 stall. and went to the track this past week and his 60 foot was quicker after finally getting it to hook on drag radials but his E.T. dropped to a best of 13.4. What gives?