Just to cut the BS, I will quote your original sentence. SInce he said "doesn't hurt ur pockets" the K series and ITR(B18c or C5) is out of the question. They are EXEPENSIVE and not worth it if your going to go boost. That WILL hurt your pockets. The rest depends on your goals. Best bet to get bang for the buck is to turbo your engine; depending on how good of shape your engine is in. If your goals are above 300whp, then it will still be cheaper to build the B18 to handle some serious pressure. You can build the hell out of your engine for the price of a B18C or K20A