Hi guys,
I've just had an engine swap because the previous one was shot. Before the previous one died, it was overfueling, but was quick.

The new engine is a 130ps one, the ecu I have is still from a 115ps 98R escort.

The MAF is the matching 115ps one.

The car has the odd surge of power but when you floor it, it will normally just fart or judder. When you boot it you can just smell loads of petrol. If you rev it on my nice paved driveway, it will shoot a 6ft long black speckled mess onto it.

It does have a k&n at the moment, I wanted to fit an airbox, but I have the 115ps airbox still, and local breakers didn't have the 130ps one

Any ideas, what could it be?