Very easy to boost a NA, but you can only run low boost due to the rings on NA pistons cannot with stand too much pressure. But You can run low boost. The Head from a NA and turbo are the same, except for the cams. Also the main difference between the block is that the turbo engine has low compression pistons, stronger pistons rings, oil squarters, and a knock sensor. If you can get a turbo engine then buy that and swap over the engine. Or just get all the parts to boost the NA engine. If you have any questions about doing this send me a PM. Or you can take the NA block build it, add oil squarters, stock or Wiseco pistons, knock sensor and so on. I can get this done for you. Or guide you through boosting the NA