Jerry,
No sophisticated engine analyzer. Just heard a very intermittent knock at the rear of the engine. Either #5 or #6 after the valve adjustment. Nothing steady with the knock sound. Could be back firing? I will set the valves as you specified and see if this helps. Thank you for your input! Will keep you guys updated.

Tim

"Pay attention to the details! It ALWAYS pays off."

1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle