The LPG system uses it's own type of carb, it's very simple it's called a VPM (Variable Piston Mixer [mixer=carb in propane speak]) so you wouldn't need webers. I purchased a system that would worn NA or boosted. Turbos + Propane = FUN!

I owe some pics of the final under hood install and various other things.

I changed the solid copper tubing they use to flexible hose like we use in the US for LPG cars.

Went out on a run on the freeway and it's still pretty zippy. needs a little more tuning.

Here are some docs:
Install Manual 6.6 MB PDF Doc



Propane mixer, cone filter, sr20 TB, adaptor plate from sr20 TB to A15 intake.



Propane components layed out

propane kit costs.rtf