Does anyone know if there is a way cleaning a fuel injector? when I finally got anew pump installed it pumped the rear cylinder an the left side full of fuel.

Many people try additives to the petrol/diesel to clean injectors, this doesn't always work, not by a long chalk. "Forte" is the one mechanics use. It's not cheap.
Often though, you just have to haul out the injector and take it a professional for cleaning. They use ultrasonic cleaners now. See that it doesn't dribble after cleaning. It may need a new pintle. Worstcase, new injector.
Leedsman.

Thanks for all the help. It turns out that there was an air lock in the fuel rail, followed by a bad case of cylinder wash. After taking care of all these It Started and is running GREAT.