Overview Reviews Product Description Genuine Made in USA Melling SPC-8 Ram Air IV hydraulic flat tappet cam and lifter kits! Get the sound and power that made Pontiac famous! 231 degrees intake duration at .050 lifter rise, 240 degrees exhaust duration at .050 lifter rise. 112 LSA. .469 lift intake and exhaust with 1.5 rockers or .516 lift intake and exhaust with 1.65 rockers. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Melling Melling SPC-8 Ram Air IV Cam & Lifter Kit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *