I'm saying that if you want a f/i car, the piston choice (and a lot of other internal parts) will be different than if you want an n/a car.

In simple terms, running f/i requires that you run stock or lower compression because of the added force from a turbo or supercharger. A highly built n/a car requires that you increase compression to take advantage of cams and other parts that need high compression to run correctly.

No matter which route you choose, a highly modified engine can fail unexpectedly or become less reliable. If you want to build something crazy, make sure you have a plan to deal with the unexpected. This doesn't mean that built engines will all fail, just that their overall reliability becomes compromised when you deviate from a stock configuration.

All motor builds require deep pockets. For the amount of money invested, the horsepower/torque return on your dollar is not that great. I sunk a ton of money in a B series build. The end result was fantastic, raw, and very pure. However, I immediately wanted more and to get more required a lot more work, time, and money that I didn't want to invest. Forced induction builds can make a lot more power faster, but may not necessarily be cheaper. You can get a nice turbo kit these days that doesn't require much more than bolting it on a getting it tuned properly. However, you can piece together a really nice set-up on your own, but parts selection will be more critical than buying a pre-fabbed kit. If I had to do it all over again, I'd look seriously at one of the kits out on the market.

There's a lot of resources on this board already. Read the current threads in the forums to see what other people have done or are doing. This will give you ideas and a place to start. From mild bolt on application to 600+ horsepower monsters ... it's all been done to Honda/Acura vehicles, so just look around and you'll find what you need.