Futures data / CFD difference

[Martazz]

Hello, I want to create EAs on stock and stock indices (CFD). Im curious if can backtest them on Futures data type? Will it be usable?

Its not so easy to get high quality CFD historical data on these instruments,  What I know, these CFD instruments are very variable according to the broker, especially trading hours differs a lot. 

Thanks for you advices

Martazz