Hydraulic Flat Tappet Lifter Type Coming off at the top of this list as the best cam for 350 with vortec heads is Thumpr Comp Camshaft 12-602-4 Big Mutha’ Thumpr Hydraulic Flat Cam that comes in three uniquely designed grinds that are perfect for all your performance requirements. It is ...
Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. We have tips onremoving carbon build up. Some of our members have had issues with flat ...