Building A Budget 347 Engine Trick Flow Specialties Rocker Arms
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Mark has opted for Trick Flow Specialties 1.7:1 ratio rocker arms (#51400520) and one-piece hardened pushrods (#21406400). The 1.7:1 rocker ratio provides more valve lift than 1.6:1 rockers, with Mark stating that Ford engines like more lift. Mark adds that his decisions are based on years of dyno experience. View Related Article
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