Well, the oil is plenty cold. I'm clearly being impatient here at the startup phase which is ironic given that this engine has been sitting in the garage for over 8 years waiting for the restoration to get to this point! I'll definitely check out "companion cylinder". I will run it a while before checking compression again. It occured to me that the rings haven't seated yet either. By the way, what kind of compression numbers should I be looking for when broken in? Thanks for the advice guys! Dave
1946 Chevy pickup, 1948 Chevy suburban, 1950 Chevy pickup, 1952 GMC pickup, 1957 Chevy pickup, 1939 Chevy pickup
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