Ray...Here is my real world experience. I had that same Fram filter on my 64 when it was running a single Holley blue pump. No problems. Switched to the Firecore 140 pump and had cavitation. Changed the Fram out for a Holley black filter and no more problems. Both filters were before the pump. My car has gone 10.15 with the 140 Firecore. Hope this helps you. Ted