G'day Ppl,
Fuel Injection has always been Black Box Magic to me.

There's a chap in Steak & Kidney who understands it.

He understands it to the point where he's made his own.
Apparently his units leave the Webber Marelli left wanting in an area or two.
Be it for a MotoGuzzi,
I understand it is adaptable to near on anything.
Including VWs

Worth a Bo-peep if nothing else...............
http://www.jefferies-au.org/My16M/index.htm 

Mind you I can relate to starting fires with two sticks

Ivan in Oz