67/68/69 cuda dilemma

Also the failing lifter issues that's been happening a lot lately, there is only 1 solution to this with flat tappets. That is to only use Hylift Johnson lifters. Only way to get them is through Isky Cams. They have partnered with Johnson on these. The Isky small block mopar PN: 3912AHY quiet power lifter is made by Johnson in Muskegon Mich. Summit sells these $235 set of 16. These are the ONLY U.S. made lifters you can buy anymore. My machinest was able to get me a set of these the other day.