318 or 318 ?? which one

...here we go again...

I can't recall who said it on the other thread just like this roughly a week ago, but he difference in compression between the '69 and '74 is nearly inconsequential for stock purposes. Use the one in better condition.

EDIT: 69 CR, rated 9.2:1...reality? Probably closer to 8.5~8.8:1
'74 rated 8.6:1...really closer to 8.2:1

...the gain of performance between the two would depend more on actual cylinder balance/compression and tuning than the negligible difference in static CR.