You'll also need either a MAP ECU or a standalone ECU like the MegaSquirt and some wiring mods. And if you don't change anything else, maybe 10 HP. What the MAP intake is, is a building block for making later revisions work better.
wouldn't the smallport map sensor be the same as the 4/7afe map sensors? i couldn't see toyota needing any higher bar sensors when the 2 engines are fairly similar..... and the 4/7afe sensors are very easy to find
Europe or Japan. You may still be able to purchase one at your local GM dealer. But it will cost you a fortune.
Or you can just use an aftermarket ECU and make your own map'ed system. all you need is a map sensor, throttle position sensor, intake temp sensor, water temp sender and a computer like the megasquirt. cost is a few hundred bucks