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i have a 454 im putting in mymy blazer and the power steering pump has 3 hoses. it has the usual in and out, but then it has one more. any ideas on what thats for or where it goes?
that extra one is part of the hydroboost system that was in whatever truck you pulled that motor out of. Normally that extra line would go up to the master cylinder and supply the boost pressure for the brake system.