Ok I have a B20 (well 2), and I was using my 88 prelude as an autox car. I am rebuilding the a b20 for it, and I would like to supercharge it. I would like to put it in place of the A/C pump, and run plumbing to the intake. Where could I find a supercharger that this would work for? As long as it fits down there, I can make brackets.

I also want to know compression wise, what the compression is stock, and how much stock internals can hold for boost pressure. More importantly, what kind of rods, pistons.....should i get for higher pressures?

What can i do about fuel? I imagine the stock ecu would need to be replaced or reprogrammed. What else do i need to do?

Last but not least. One motor is stamped B20A5 and the other is stamped B20A. Whats the 5 for?

Thanks.