Loads, 550hp F150 Truck probably being the most powerful.
We probably wouldn't get involved with a Cossy as we tend to work on more modern vehicles which are less likely to have hidden problems and less mileage, have a look at
www.gastech.org.uk for more info on LPG, you obviously won't find any info on Cosworths on there but you will get an idea of the sort of things we do.