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What Carb was stock on '67 w/HiPo

2.6K views 8 replies 8 participants last post by  Cougrrcj  
#1 ·
I have a '67 Dan Gurney Special with the 289 HiPo. I thought I had a standard Holley 4 Barrel 600 CFM - but when I gave the List Number to a shop for the rebuild kit, he said I had an after-market Holley. Does anyone know what the stock barb should have been - and how can I identify what model I do have?
 
#2 ·
There were no 289 hiPos put in 67 Cougars....ever. You likely have the 225 HP "A" code enine if you have a 4V. I believe the stock carb was a 450 CFM unit.
 
#4 ·
To identify the one you do have, there are some numbers on the air horn. Post those, and we can tell you what it is. There are a few guys here with the Big Holley book, and a few rat holed websites for exactly that kind of thing...
 
#5 ·
The 289 HiPo came with a manual-choke version of the 600 cfm Autolite 4100.
But, as others have stated, that engine wasn't available in Cougars. So if your car has a true 289 HiPo, then A) you're very lucky and B) someone swapped it in.
Chances are your Holley is a list number 1850. Holley sold a gazillion of these over the years, and they're a good, if basic, unit. Once set up, they work very well on 289/302 cubic inch engines.
 
#6 ·
Chances are your Holley is a list number 1850. Holley sold a gazillion of these over the years, and they're a good, if basic, unit. Once set up, they work very well on 289/302 cubic inch engines.
Didn't Smokey Yunick say "The Holley 1850 is the runninest carburetor on the planet"? LOL :buck:
 
#8 ·
A 600 Holley is good for almost every small block application. It MIGHT be a smidge too big for a 260, but other than that, it's juuuuuust right!
 
#9 ·
Ford used 600cfm Holleys on GT390s, and 'only' 735cfm on 428CJs. What was that question again?

The point I'm trying to make is the vast majority of people over-carb their engines. Case in point: Both of my Q-code 351C-4Vs ran better ET/mph with a 600 than when I tried a 780.

My current 393W runs almost the same with both a 670 Street Avenger and an old-school 780. The 670 gives better all-around drivability and throttle response. Now I'll be the first to admit, both are in 'out-of-the-box' tune and adjustment. No changes to jets, power valve, secondary spring, air bleed, squirter size, pump cam, etc from the 'factory' settings. To tune it properly, I'd need a full day of dyno time ($$$) and a boatload of parts ($$$).