I have been having trouble with my Romano LPG Injection as mentioned. So yesterday I took it back to Neil @ Rush, it turned out to be some software issue because a quick recalibrate saw it running well again.
But, we also looked at an interesting side to the Romano. You can manually select a rev point at which you want to start injecting an amount of petrol at the same time as LPG. This is unique to the top of the line Romano that I have.
Problem is, he didn't have time to put it on the dyno. But still, the possibility is there to use petrol to support more fuel at high revs.
You can select the starting revs and the injected amount (pulse lenght) of the petrol injectors.
I'm thinking, for the time being, if I can get a good wide band and the Romano software I might actually have a basic tuning method built in here.