like Mike says... on a broken in engine, it should be less then 10%. I need to rerun Z-Lab now that it's got closer to 500 miles and see what it offers, then check it against my '95 w/ 43k on it. I didn't own a leak down checker until I built this last block for some reason.
Later
"If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z is keep your mouth shut." - Albert Einstein
When was the last time you *really* did something with your Z to call yourself a Z enthusiast?