I know this topic was directed towards the use of EFI. But for the people who have been talking about webers I thought you may find this handy.
After lots of of messing around and using the cheap facet pumps from supecheap I wish I had found this webpage in the first place.
http://www.racetep.com/webfuelspark.html#webfuelIt also tells you some good info about ignition systems.