injection to carb 1.2 engine change

hi there

i recently swapped my 1.2 spi injection engine to a 1.2 carbed, being rather lazy and hating wires i didnt change the loom.......... so as u can imagine have alot of spare plugs.
at the moment im not getting a spark, i recon its beacause the carbed engine has a completly different dizzy and coil, the injection coil has a extra wire carbed does not.
im guessing thats why im not getting a spark, but to change the dizzy id have to take out the cam shaft and swapo them round as each dizzy has a different fitment.

would it be ok to swap the cams ??

or

can anyone help with another method so i dont have to change the cam

cheers :)