I'm doing a 4L80 swap in my 99 trans am. I have a 400-430rwhp HCI LS1. I'm also running a circle d 3000 stall. If I had to guess what it will run it should be about 1.7 60ft 11.7 @ 117. Do I need the 300m input shaft or can I get away with stock? I plan on driving the car daily with track time maybe once or twice a year so I will be running street tires most of the time if not all of the time. Can you guys give me a little insight on what's needed, what's not and what's a good idea, ect. thanks.