1995 Toyota 4Runner cylinders full of fuel

vehicle had coolant leak at intake gasket.replaced intake manifold and gasket.no more coolant leak but runs bad.ran fine before we worked on it.flooding cylinders with fuel.fuel coming out tail pipe.rechecked everythiing i removed and retraced my steps,dont see anything misplaced or not connected.any ideas would be great,
thanks,john
glynnracing79@aol.com