About 230bhp if you can an st220 engine!.
And then another £1,500 to £4,500 to fit it depends where you go
But not putting a completely different engine into a different car with no ecu that will run it !the garage i use is good top blokes good prices and do great work on everythink iv ever asked of them
If that seems negative, then consider this - pretty much every big power project Frankenstein Cougar has ended its life very shortly after "completion" with an exhausted owner who ran out of enthusiasm.