These injectors are leaking. Don't buy them. I installed them in a rebuilt engine and 3 out of 6 are leaking. I've been a professional mechanic for 5 years so this isn't my first rodeo. When I turn off the engine, the fuel pressure immediately drops to 0 and one cylinder has its spark plug saturated with gasoline, the other two are dark and smell like gasoline. The remaining 3 spark plugs are clean. Fuel economy is poor and the exhaust smells greasy.
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