hello all.glad to join up and i hope to learn from you guys on modding my 99 silverado (it has only 193,00 miles)im also a buick grand national fanatic and ive noticed turbo kits for our trucks from compainies like sns,etc and its caught my curiosity.looking to turbo my truck and when i kill the 5.3 looking to do the ls1 swap.i own a mobile electronics store in georgia and ive done automotive electrical work for twenty years now,so if anyone needs help with audio,electrical,just ask.