What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8? - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 12-13-2011, 10:45 AM   #1
Registered User
Newbie
 
Join Date: Dec 2011
Posts: 9
What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8?

I have a 1968 Ford Mustang 302 that the person that had the car before me converted to a 2 barrel carburetor. That carburetor is leaking bad and pretty much garbage, and I want to have a 4 barrel carb put back onto the car. What carburetor should I buy for it?
imported_ricardo is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-13-2011, 11:09 AM   #2
Registered Member
Regular
 
Join Date: Aug 2009
Posts: 43
What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8?

If it has a 4 bbl intake with a 2 bbl adapter, then you can put a 4 bbl back on.
Though there are better carburetors out there, but I would put a small spread bore Holley on there because it's easy and it is similar to the 4 bbl's for that era car. Spread bore carburetors have smaller front barrels than rear barrels. A square bore has all four barrels the same size. Spread bore's will atomize fuel better at part throttle loads. Therefore, you'll get better response, drive-ability, MPG's and part throttle performance. However, spread bore and square bore units fit differently on top of the intake manifold.

Another secret to making a Holley on the street deliver both great power and mileage is one that has Annular nozzles/boosters instead of Down leg or Dog leg nozzles. Annular nozzles are superior to the other style boosters in their ability to vaporize fuel. The other two style boosters shine at wide open throttle but they make a carburetor a PIG a part throttle loads, and especially on either a small engine or a low compression engine with a BIG camshaft. Vaporization is what will differentiate a great carburetor from a poorly performing and gas sucking one.

There is an average of about 40 horsepower at street RPM's between a carburetor with Down leg boosters and then taking that carburetor, removing the down leg/dog leg boosters and installing the annular boosters. The difference in the manners of the engine is night & day. I've also seen upwards of 5 MPG gains that way, too.

Email: camshaftshaun@gmail.com
jeffery is offline   Reply With Quote
Old 12-13-2011, 11:51 AM   #3
Registered User
Newbie
 
Join Date: Jul 2011
Posts: 4
What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8?

Depends,did the previous owner change the heads or did he just slap a 2 barrel intake on the 4 barrel heads.If he left the 4 barrels heads on,you can change the intake back to 4 barrel and install a 600 to 1100 cfm carburetor.The larger the cfm,more gas into the engine.If i remember right,they came with a FoMoCo carb stock.

I'm sure some one will suggest carbs in a minute but I'd go with a 650 to 850 cfm Holly dominater.
Claudius is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-13-2011, 12:49 PM   #4
Registered Member
Regular
 
Join Date: Aug 2009
Posts: 41
What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8?

Are you sure he changed it. The 1968 Mustang with a 5.0L 302 came with a 2 barrel or a 4 barrel, depending on how it was ordered. Have you checked the vehicle plate to see what it was spec'd with originally? If it was a factory 2 barrel, then the camshaft will be different than if it came from the factory with a 4 barrel. You need to check to be sure. Then you can worry about size, heads and intakes.
A 600 CFM will be more than sufficient.
1985 Mustang 5.0 had a 600 Holley, and also the 600 Holley was used on many Chevy motors. One that immediately comes to mind is the 1966 Corvette with a 327 cu in 350 horsepower motor.
brawley is offline   Reply With Quote
Old 12-13-2011, 01:32 PM   #5
Registered Member
Regular
 
Join Date: Aug 2009
Posts: 38
What 4 barrel carburetor do I need for my 1968 Ford Mustang 302 V8?

A 2 barrel. Unless you also buy a manifold meant for a 4 barrel. You have some reading up to do.
columbanus is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Classic Mustangs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



07:02 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.