So i've got a spare GT cam and I'm wondering will it run at all well on my 1.0? will there be any reasonable power gain or will it just run like a bag of crap because it isn't the same injection as the GT?

what year is your polo?

93 K reg

Then its not got a carb, its single point injection.

You will see a bit of a power gain.

Not sure if the cam timing needs to be moved to get the better of it.

Ok cheers!