I think it should run better though. I have a block I rescued from someone who had a pulsation damper fire. It's been sitting a couple years, but I checked the compression on it this morning. 115 front and back. It has 40k miles, on a rebuild by Rotary Performance in Dallas. Any idea what kind of power increase I would see? Would I be better off rebuilding the one that's in there? Both motors have good pulses on all 3 rotor faces. Thanks FJ