Carb Identification
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Tuned
Joined: Aug 2012
Posts: 384
Likes: 2
From: Olympic Peninsula
Carb Identification
I did myself a disservice by not verifying what carburetor I have on my (1972 F250 390 Auto C6) truck before ordering a carb rebuild kit. This morning I checked on my newly arrived truck and it turns out my carb is in fact not an Autolite 2100 like I had assumed. I have a Holley. I can't figure out which one it is (I know it has to be stock though) and I can't find a tab anywhere on it. Which kind of Holley is it? And are there well known rebuild kits for it? I will get some pictures up of it soon, bear with me I've got a lot of things going on.
Thanks for any help in advance!
Thanks for any help in advance!
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
IIRC, newer Holleys will typically have numbers stamped on the front side of the (choke) air horn. Some have it somewhere on the body.
Here's a site that has pics and where ya just enter the numbers: Holley Carb Identification
2V? It's likely a 2300 or its kin.
Here's a site that has pics and where ya just enter the numbers: Holley Carb Identification
2V? It's likely a 2300 or its kin.
Thread Starter
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Tuned
Joined: Aug 2012
Posts: 384
Likes: 2
From: Olympic Peninsula
Thank you! Wow that website is so easy and awesome. Yes I completely failed to say, it is indeed a 2 barrel. Here are some pics. Got it all figured out, thank you HIO!
Here is the dang zip tie. What the heck man. Oh well, I'll fix this. What is it doing here, holding the choke open?
Got the number. Yes!
Here is the dang zip tie. What the heck man. Oh well, I'll fix this. What is it doing here, holding the choke open?
Got the number. Yes!
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
If you end up getting 7-8 mpg you may want to think about going to a autolite carb where you can run much smaller main jets like #52-54's as every little bit helps when the piece of gas is over 4 bucks a gallon.
But if your young and have a need for speed and gas money is no big deal then
you'll be happy with that big cfm 2 barrel Holley carb..
Orich
But if your young and have a need for speed and gas money is no big deal then
you'll be happy with that big cfm 2 barrel Holley carb..
Orich
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Tuned
Joined: Aug 2012
Posts: 384
Likes: 2
From: Olympic Peninsula
Thanks so much for the info and tips, guys! Yeah for sure right now I'm going to rebuild it and see how that goes with my money and driving style, and I'll consider an autolite to save cash. Also, that holley website doesn't have the kit available so I'll have to call unless anyone knows of another seller. O'Reillys website has been crapping out on me lately
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Holley and Ford list their jet numbers differently. So a Holley 73 is not the same as a Ford 73. You can try...say....#71 jets. If you do, run it a bit and check your spark plugs. Make sure it's not runnnig too lean. 500's have bigger bores so they require bigger jets. Holley's have a stronger power curcuit than an Autolite. Better for hauling and towing. 2X Orich on the mileage.
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Tuned
Joined: Aug 2012
Posts: 384
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From: Olympic Peninsula
Okay cool, thank you for letting me know about the jets. Also, I checked that Holley website again and it gave me a different kit number that's available.
http://www.carburetion.com/products/productdetails.aspx?part=KT-5274A
Is there a problem with using different numbered kits or will either work? I'm not trying to cheap out but I'm making sure I get the right one
http://www.carburetion.com/products/productdetails.aspx?part=KT-5274A
Is there a problem with using different numbered kits or will either work? I'm not trying to cheap out but I'm making sure I get the right one
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Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Okay cool, thank you for letting me know about the jets. Also, I checked that Holley website again and it gave me a different kit number that's available.
KT-5274A - Carburetors Unlimited
Is there a problem with using different numbered kits or will either work? I'm not trying to cheap out but I'm making sure I get the right one
KT-5274A - Carburetors Unlimited
Is there a problem with using different numbered kits or will either work? I'm not trying to cheap out but I'm making sure I get the right one
Thread Starter
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Tuned
Joined: Aug 2012
Posts: 384
Likes: 2
From: Olympic Peninsula
Okay, I'm thinking of ordering this one:
Holley Performance Products Renew Kit Carburetor Rebuild Kit 37-474
Feels good to order it from Holley themselves, plus it's cheaper than Summit it looks like. Thanks again for all the help! Hopefully by the end of next week I'll be driving myself to work and back and I can rebuild my carb at work on a Saturday or something.
Holley Performance Products Renew Kit Carburetor Rebuild Kit 37-474
Feels good to order it from Holley themselves, plus it's cheaper than Summit it looks like. Thanks again for all the help! Hopefully by the end of next week I'll be driving myself to work and back and I can rebuild my carb at work on a Saturday or something.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Okay, I'm thinking of ordering this one:
Holley Performance Products Renew Kit Carburetor Rebuild Kit*37-474
Feels good to order it from Holley themselves, plus it's cheaper than Summit it looks like. Thanks again for all the help! Hopefully by the end of next week I'll be driving myself to work and back and I can rebuild my carb at work on a Saturday or something.
Holley Performance Products Renew Kit Carburetor Rebuild Kit*37-474
Feels good to order it from Holley themselves, plus it's cheaper than Summit it looks like. Thanks again for all the help! Hopefully by the end of next week I'll be driving myself to work and back and I can rebuild my carb at work on a Saturday or something.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
You were referring to the "others also purchased" float, this one?
Holley Performance Products Center Hung Float 116-3
Holley Performance Products Center Hung Float 116-3
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