*UPDATE* well my 4.8l spun a cram bearing, so im having a buddy swap a ls1 in it and putting a trickflow cam, shorty headers for now and nelson 91 octane tune in it. was planning on trying doing it myself but dont have the time or really the knowledge to do the entire swap so letting a friend do it should be running by 2/19/11.... hopefully but i plan on getting a built 4l60e with a nice torque converter, and of coarse long tube headers, cut out cats and full 3" exhaust