KeithCannon69

I know this is am old post but I am going to try anyway. I am looking for this heaby duty nvg149 and the 32 spline input shaft required so I can mate to a serious 4l80e. Will be running an iron block 5.3 with a good bit of boost. Looking for 1200 whp. Don't laugh...for an awd Astro. Mean sleeper! Thanks for your time.