Basically that he blews it.
IF flew correctly, in a one on one Fw190 has no chances Vs Spit.
When I met a co E Spit first thing I see is if he goes for the HEadon. If he does so, I zoom up with the E that I win over him (he blews it trying to get HO),and come down to kill him.
Another common thing seen is that the SPit turns flat after the merge...again zoom up, go down and kill kill kill.
If the con zooms up as I do it too, then I dive, win speed and extend. When I win separation, loop and come back, fake HO and dive under him, zooming after it. If the con goes for the HO ,I have the upper hand. If he doesnt, then it is a matter of who wins the Headon. No chances to beat him in a close fight,and I hate Headons, so I usually break contact after second merge w/o HO try from the con.