Overview Reviews Product Description Manley Gen II Race Flo Series Custom SS Intake Valve 1.22in Head Dia 4.11in L 0.2362in Stem - SINGLE Product Videos Custom Field Product Reviews Write a Review Write a Review × Manley Performance Manley Gen II Race Flo Series SS Intake Valve 1.22" Head Dia 4.11"L 0.2362" Stem Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *