I went with a Holley HP set up first. I went down to take the training class at the Holley facility. After I left, I sold my HP and bought a Holley Dominator setup. A lot more input/outputs with it. Especially if you are going with a turbo setup, I would look at the Dominator setup. As far as where to buy it, buy where you are going to get the best support after the sale. The guy that I bought mine from is a member on here. He also has wicked fast Duster with a twin turbo set up on it. Lucky for me he is local if I have any questions, he is there to help. Support is a big factor with these things.