Dont bore too big. Your cylinders could melt. 1800 - 1830 is very good. And spend enough money for the pistons! Cheap ones are not worth the money. And try not to use the Cosworth 4x4 management. If you're running standard programme it won't work well.

This Escort had WM management until July, the owner changed to something free programmable to get more power out of the engine: