Here's what I found on the web. 17066558 170= made after 1976 66=??? 5= California or high al***ude 5= Oldsmobile 8= even number is automatic trans
Here's where I got my information from. http://www.recarbco.com/technical/rochester/qjet.html Mr48chev, I just saw the link you found as well. zboo2, To determine if you have the Chevy or Olds carb, look at the fuel inlet fitting. If the fitting faces the p***enger side valve cover, it's the Chevy. If it comes straight out the front, it is a Buick, Olds, or Pontiac. http://www.78ta.com/smf/index.php?topic=22964.0