So, if I'm understanding most of you correctly, the 5.3 and 6.0 don't make enough power with external bolt ons to make low 12's, but an LS1 with similar bolt ons could, in a light weight truck with the right gear?
Or is the position of experience on this board that a naturally aspirated LSx of any origin can't make it?
I found a video on YouTube that shows an '01 Sierra with an LS1, 4L80E, convertor, gears, and a 100 shot turning mid-11's. Check it out at the link below.
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http://www.youtube.com/watch?v=c-5ioFpGiMM
I have tried to contact the guy to see if there is more to his combo than he lets on, but I haven't heard back yet.
Anyone have any thoughts on this?