Here's the Megasquirt discussion group site. A lot of help here:

http://www.msefi.com/

Here's a 122 using the D-jet equipment controlled my Megasquirt:

http://www.southroad.net/ms/

Turbobricks.com has a aftermarket engine management discussion group section, which is very useful for Volvo Megasquirt users:

http://forums.turbobricks.com/forumdisplay.php?f=21

Here's a site that sells full B20 Megasquirt kits (Phil already mentioned it):

http://1800philes.com/mkit.html


It took me about 2 years of gathering parts, information, and modifying parts (mostly the gas tank and intake manifold) to get my Megasquirt finished.

Here's a post showing my surge tank setup:

http://www.brickboard.com/RWD/index.htm?id=1087883

Purchased from Tweakit (~$65) out of Austrailia:

http://www.tweakit.net/shop/index.php?currency=USD&cPath=40_29&sort=2a&osCsid=2d2b26b92a915aeb2160f01ae7475b87

Here's a post showing my fuel pump setup (from a 240-fits pretty much where it sits in a 240):

http://www.brickboard.com/RWD/index.htm?id=1087877

I think setting up the equipment was the easy part. Setting up the parameters and tuning Megasquirt through the computer was more difficult. More of a learning curve thing.

Paul