i have a 89 T4r sport w/ 22RE and manual grinder. drive it in altitude ranges of 2400ft to 10500. love the idea of propane and have medium auto tech capabilities. OK very few mechanical attributes. Better said, better off left to my 17 yr old car guy son. I know there are posters that are more than qualified to respond and would thank you for input to the pros and cons converting to LP if it is even possible