Holley carb identification

[Robert L.]

The holley carb on my 1966 427/425 is as follows

3886 101-EI
List 3247

Why isn't there a date code to follow?

[Mike T.]

Re: Holley carb identification

Robert - So there is 'no' date code below the List 3247? Here's a pic of the service replacement 3247 from my 66 L72...now running a sedate 396. I would have expected a 3-digit numerical code for an original Holley and 4-digit code for a service replacement. Don't think I've run across one with no date code at all.
*Also sent you an Email via the NCRS site re: Your L72*
IMG_8122.jpg

[Larry M.]

Re: Holley carb identification

Recent (last 10-15 years) Holly vintage replacements carry no date code. It is also possible that this part was replaced on an original carb as simply a replacement part....which also carries no date code.

Larry

[Paul A.]

Re: Holley carb identification

Can this help?

https://www.holley.com/blog/post/how...on_carburetor/