Now the XJR conversion is well established and we have all the data recorded to convert yours with no problem at all.
The latest generation of Romano multi point gas injection equipment allows us to convert the car so well that it is hard to find any difference in performance. Only the cost of running the car is seriously reduced.
We took a careful look at all of the LPG equipment currently on the market to convert this car. I had a firm target of full performance on LPG with no change back to petrol at any speed.
It is impossible (even for me) to tell which fuel the engine is running on and just as impossible to find the limit of the car's performance on LPG on today's roads.