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I’m getting around to putting my motor back together and I’m wondering about the spring selection for my Melling 10295 high pressure standard volume pump. What spring do I use? It already comes with the red spring installed, but I have a blue spring and a copo Camaro OEM style spring. Do I just leave the red spring in? If not which one should I use? What oil pressure will I look for when the engine is running?
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Melling oil pump spring selection 
