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People don't have a problem with you, they have a problem with whatever asshat put a Y7 into an EX. The first thing you'll have to do is put a Y8 head and MPFI back on that block...called a "mini-me". For that fact, are you sure that you don't have a mini-me in the car already? It's possible that the block blew and that it was just replaced with a Y7, since they're the same blocks.
Next, what's your budget? I'm shooting for turbo'd 200whp out of my D16Z6 and I'm using Nippon Racing Pistons because they're supposed to be good to 300hp. If that's all you want, you can get those on eBay for ~$160 with rings. There are people on D-Series.org who are running 400whp on fully built D16s. How much power do you want and how much are you willing to spend to get it?