Hello Guys! The health of the slant seems fine. I want to keep this. But I'm looking to improve the performance of the engine. I am willing to spend a few hundred dollars for an upgrade. The goal is to drive the car more economically. A smoother or faster acceleration is desirable. Now the average fuel consumption on LPG is between 12-14 mpg. It runs and drive fine now. I also have no impression that it is too rich, though I say so myself. However, it starts easily, even now with the colder weather without using the choke. I have seen that it is possible to improve this towards the 22 mpg. This gives a bit of a guideline. Of course this differs. It would be desirable if the car runs more economically on the motorway. Here I drive around 60-70 mph on average. My car is fitted with , to my knowledge, a standard super 225 slant with a 'European' camshaft (244° intake, 244° exhaust, 26° overlap, 0.416" lift). What is a sensible upgrade for the slant to improve fuel economy and some bottom performance? I was thinking to install a programmable ignition system for adjusting for both fuels. But maybe someone have another ideas or experience? All tips are welcome. Thank you in advance!