oh it's not too bad. Took me an hour or two to learn to read a compressor map I just went ahead with the GTX3582R gen 2. They share the same turbine housing so it shouldn't be a huge deal to swap. I'll just have to sell the 3582 core and lose a little $$$ if I need to swap them. It's a dual ball bearing turbo that I actually did the math to find a compressor that would fit it so I can't see it being any worse than the 56mm ebay turbo I was using earlier.
69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.
