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Replace Existing Carburetor |
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hamilton7711 
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Joined: 16-June-2023 Location: Humble, TX Status: Offline Points: 59 |
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 Topic: Replace Existing CarburetorPosted: 19-December-2025 at 9:04AM |
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I need to replace my carburetor in my 73 GTSS. It is a Q code with a 351 4 v. Any suggestions would be helpful and where to get it would also help.
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Rockatansky
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Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6398 |
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Posted: 20-December-2025 at 1:38AM |
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original carb? what leads you to the diagnosis that the carb needs to replaced rather than rebuilt? have you investigated the stack of gaskets and EGR plate all the way down to the cast iron of the intake manifold carb flange? what distributor / ignition system, stock points? when's the last time they were serviced and set to spec with a dwell meter?
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72 GT Ute
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hamilton7711
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Joined: 16-June-2023 Location: Humble, TX Status: Offline Points: 59 |
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Posted: 20-December-2025 at 2:01AM |
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Yes original carb. Can’t find any one to work on it
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Rockatansky
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Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6398 |
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Posted: 20-December-2025 at 3:10AM |
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what about the distributor? reason i ask is because if i had a nickel for every time a carb got changed instead of a set of points .... i'd be $$$$$$$$$$$$$$$$$$$$$
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72 GT Ute
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peter.jenerette
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Joined: 08-February-2023 Location: Nevada, TX Status: Offline Points: 1054 |
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Posted: 20-December-2025 at 4:58AM |
Once you can obtain the kit, these aren't very complex devices. Yes, quite a few little balls and clips, but lots of pictures (to remember how linkage goes) and a clean work surface you can do this if you have patience and know which way to turn a screwdriver. I think the hardest part of rebuilding a carb (assuming the throttle shaft bushing aren't all worn out) is the tuning once back on the car. As mentioned though, make sure your ignition is all square before deciding its the carb. Don't forget to check the advance on the distributer. Good luck! (There are some people out there that will rebuild these if you send it to them).
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Pete Jenerette
1972 Gran Torino (H-Code - 4R70W) 2022 F250 XLT 7.3 2003 Thunderbird |
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72FordGTS
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GTS.org Admin Joined: 06-September-2005 Location: Ontario, Canada Status: Offline Points: 6780 |
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Posted: 20-December-2025 at 10:00AM |
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Are you still running a stock 4300D? These can be a really difficult carb and I have never seriously messed with one. Maybe someone else on here can speak to rebuild or tuning one better than I can.
If the ignition is all good and you want to replace the carb, an Edelbrock AVS2 is a good choice. I run a QFT Hot Rod 680 VS and I am happy with it. The Brawler carbs seem to be well liked too. If you do go aftermarket, expect to need to tune, not just bolt it on and go.
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Vince
1972 Ford GTS Sportsroof - Survivor, One Family car GTS.org Admin |
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hamilton7711
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Joined: 16-June-2023 Location: Humble, TX Status: Offline Points: 59 |
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Posted: 20-December-2025 at 11:52AM |
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Yes I have the 4300d. I know what’s going on the bowl is not holding the gas and I have to crank and crank on it 5-6 times after it sits a few days. I appreciate your advice
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SEKCOBRA
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Joined: 27-November-2012 Location: NY Status: Offline Points: 674 |
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Posted: 21-December-2025 at 1:26AM |
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I have a 4300 auto totally restored. Not just rebuilt. I would sell it or I can also tell you who to send yours to to have rebuilt or restored if you want.
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69 Mach 1 70 TORINO COBRA 71 TORINO COBRA 72 Z28 CAMARO 94 MUSTANG 5.0 LX NOTCH 72 GTS Q CODE 61 Galaxie 427 62 Galaxie 406 64 Galaxie country sedan 1972 GTS Q CODE 1972 GTS Q CODE BLACK |
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Rockatansky
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Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6398 |
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Posted: 21-December-2025 at 7:58AM |
while i agree with Vince that an Edelbrock carb would be a good choice in this situation, your description of what's bugging you about your old carb is an extremely common complaint of the Edelbrock Performer carbs. in case you're not aware, your 4300-D carb has a very unique base gasket pattern. there are literally no other carbs that fit the intake w/o an adapter plate, and there is only 1 adapter plate that is correct. Trans-Dapt 2199 yeah the price hasn't gone down but it's worth it if you need it. on the other hand you might find a used Edelbrock Performer manifold for the same $ or not much more. changing the intake (if it gets done correctly) will eliminate the possibility of a failed intake gasket that would not otherwise be solved by only changing the carb also consider that changing to a different make / style carb and/or intake manifold brings with it several issues to address such as throttle linkage, kick down linkage if auto transmission, fuel line routing, vacuum hose alterations, choke plumbing / wiring, possibly the air filter housing will not fit just a carb, right? Nope |
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72 GT Ute
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hamilton7711 wrote: