Originally Posted by Tod74
Originally Posted by whitey70ss
is there any way to measure comp. ratio with the engine in the car???
NO
Tod, Hate to correct you, but it can be done. Remove the carb, put one ounce of chicken feathers in the intake manifold and the rotate the engine exactly one revolution with your wifes vacuum cleaner drawing on the header collector. Count the feathers and thats your compression ratio.
Very accurate... Dave