Been a while since I last posted, but I need some help making decisions for what I will be doing this winter. Right now my car has the PI head swap and your basic bolt ons. I have saved my money and want to start fresh. My goal for the car is somewhere around 425 - 450 horsepower from the motor. I don't take the car to the strip, and it's more of a weekend play toy....but that doesn't mean I don't want more power. I am looking at buying a short block from either MMR, DSS Racing, or Coast High Performance. I am going to stick with a 4.6, not a stroker set up, and put either a procharger on it or vortech. I'm thinking around 8-10 psi of boost at the most. From everything I have read, this set up with one of the basic short blocks from these companies (MMR 600, CHP Street Fighter series) should get me around my horsepower goal. Ialso have purchased a tKO 600 transmission for the car that I already have. I need your opinions/experiences with these short blocks to help make the best decision. The pricing is roughly the same for each option. Thanks for the help.