I know this is old, but it's a how-to, so it's always current
Just wanted to add my 2 cents.
If you remove your intake, it makes moving the intake manifold/throttle body a lot easier. Pre-tightening the clamps is a good idea like Mike said.
Lastly, this does *not* have to be a two-man job. I just got done doing this 5 min ago and it took a little while, but it's because I had stupid hang-ups. But the actual installing of the couplers and clamps was very straightforward. Don't be afraid to do it on your own, just line things up and all 4 couplers will go on in one shove