Anything related to the various versions of Megasquirt will be found here.

Information pertaining to definition, installation, and tuning of the Apex S-AFC

Information pertaining to definition, installation, and tuning of the Vortech SFMU.

Information pertaining to definition, installation, and how to use a wideband oxygen sensor for tuning.

Instructions for constructing a digital-numeric air/fuel gauge

How to do this without the proper tools.