Currently eyeing off an '04 BA Fairmont Ghia 6. Roughly 50k's on it.

My question do many guys have these converted to dual fuel?

How much did it cost? Was it worthwhile (running cost wise)? and are there any problems that they experience with a gas conversion?

Thanks guys.

How much will it cost is up the air due the new govt subsidy and high demand.

As far as running cost see calc here:
http://www.fordmods.com/forums/viewtopic.php?t=7265&highlight=calculator

I'd be running the injected sytem, roughly around $3400.
My mate has done quite a few and they work well.