the only issue i can forsee with using compressed air is the space limitation, i only have about a 30x12cm (12"x8" roughly) and i'm not sure where i could fit the compressor.
At the moment I'm considering going to the wreckers tomorrow and grabbing two injectors and trying to find a solenoid valve that can split between two outputs. The plan is then to connect it after my fuel pump and use a capacitor shutoff circuit to control the exact amount i'll need.
This wont be an issue to my normal driving as I run a duel fuel system, not sure if its popular in America and elsewhere but here in Aus it's fairly common to get LPG conversions which is a lot cheaper than petrol,
And yeah a Magna it is, wish I had a verada though