Tune up on LPG motor

[VE Sportwagon]

Just picked up a VH Commodore Vacationer with a 202 motor. This will be a project car for my son and I to work on. It is running on LPG and wanted to know if anyone could tell me whats required to tune the motor. I have tuned petrol cars before but never one running on gas. Your help with this would be appreciated.

 

[centy]

2 adjustments on the gas system. up top near the ventury is the high speed gas valve, it controls how much gas goes in at speed. down the bottom on the gas valve is the low speed adjuster screw, it controls idle.

 

[levymetal]

i know it's a lot to read, but you'll learn everything you need to know by reading this: LPG Converter Dramas [Archive] - Aussie Phorums
and this: Impco Fuel Mixture Control