My understanding is that sequential injection is that best way, but, you can make the other systems work and they are a lot cheaper.
The installer I dealt with said that to get rid of the back firing issue you need to have good plugs, leads and dizzy (if you have one) . In short, if it's all ok it won't jump and cause a backfire.
He seems to know his stuff and has a RR sport on a Prins system for what it's worth.

TD