Holley ID Question
Thread Starter
Bud2
Joined: Jul 2005
Posts: 1,237
Likes: 4
From: Warrnambool Victoria
Holley ID Question
The Holley on my 350 has two relevent numbers stamped on it. One is stamped '4585B' - this is on the upper flat top on the throttle body.
The other number is on the front, left of the choke horn. This number is 'LIST-9834' and below that '1497'.
Could someone help me out on telling me what carb this is?
Thanks in advance.
Bud.
The other number is on the front, left of the choke horn. This number is 'LIST-9834' and below that '1497'.
Could someone help me out on telling me what carb this is?
Thanks in advance.
Bud.
Le Mans Master
Joined: Feb 2006
Posts: 6,048
Likes: 5
From: "cutesy" TN
Thread Starter
Bud2
Joined: Jul 2005
Posts: 1,237
Likes: 4
From: Warrnambool Victoria
OK, I THINK I got that.
I looked at the Holley site but I didn't see that list! And it is sure more complete than the Mortec site. So thanks knight37128. Do you know why all numbers start with the letter 'R' on the Holley site? There is no 'R' on my carb. And What is up with the -1, -2, -3? Looks like it is just a different primary main jet. For different elevations?
Bud.
Bud.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
The "R" never appears on the "LIST" stamping on the choke horn; the -1, -2, -3, etc. indicates the engineering change level of the carb. Generally it involves jetting, but can also include changes to the main body and/or metering blocks. 
