im about to build another but this go around it'll be a turbo ls. I've got a buddy that drives his to and from the track, 80 mile round trip. it runs 5.40s on a 29×10.5 and still has power windows.
its a stock bottom end 5.3 with a 140k miles. it has a little head work, texas speed cam, kooks headers, intake but i cant remember the brand. and a 80mm turbo... 400 turbo trans. with a brake in it.