i have a holley 4 bbl with the following numbers on the air horn. can anyonyone id this and what cfm. numbers are 80454 and underneith that is 1250. thanks
Here is a link to the Holley numeric list. http://holley.com/data/TechService/Technical/Carb Numerical Listing.pdf You have too many numbers BTW. What you are lookinf ro is the top number. It should say list before it like this one.
Try posting a pic of it it may actually be a Ford carb. make sure you post the linkage side as well as the p***enger side. it will help in ID. Does it have a carb tag by chance? OK I found it I think I wasn't far enough down the list. The list shows it as R80454 a 4160 style carb 600 CFM. It should have vac secondaries and by the style I'm going to guess side hung floats. Snap a pic or two anyway so we can be sure I'm giving you good information.
I think there is a distinction for carbs that came bolted to a factory car at least someone told me that once. I'm not sure so don't hole me to it. That is where a pic would come in nice Fords and Chryslers for instance had different linkage to handle the kickdown for the ****** for instance.
Check out http://www.holley.com/data/TechService/Technical/Carb%20Numerical%20Listing.pdf The 80454 is listed on page 15 as a type 4160 600cfm plus other information regarding bowls, metering blocks & plates, etc.
You already got your carb identified didn't you? ....it's a 600 cfm 4160, smog applications from 70s Mopars