[Don]

My 35 with a 37 engine does the same thing for several years now. Have been thru the valves a couple times.it doesnt seem to cause a problem , so far, might ck the fuel pump this summer..while playing with some distributors this winter i found that if there is to much end play they will interminyally tap a little until i put another washer in front of the rotor to take out slop. Don p