Eh, I installed my Whipple myself on my 02 Denali, then a cam and longtubes. I hadn’t really done any of that before so I had no experience. Of course I quickly blew up my 4l60 and bought a really nice unit from www.Performabuilt.com rated for 800 HP and installed that. All in all everything has been reliable with the exception of the trans which turned out to be my fault both times I did the 1500 mile required service- I used RTV on the pan gasket which plugged the servo drain holes which caused them to not release and exploded the hard parts. They covered it under warranty both times over a 2 1/2 year span and finally figured out what was happening. Long post, but I just wanted you to know if you want it, it’s possible. I’m over 60 and did all the work in my driveway. But the thing is a friggin blast to drive. If you wanna see all I’ve done, there’s a link to my build thread at the bottom of this post. If it’s not there, rotate your device.I really want to supercharge it but it just isn't the right platform...I'd need a trans and all the engine support to go with FI...that's a tall and expensive task especially as I couldn't do the work myself. Oh well, I've never been one to talk myself out of of bad idea and its good to have stretch goals haha