Motorcraft 2bbl cfm

Metal396 · 12-01-2002, 08:18 PM

I was wondering if anybody knew what cfm the motorcraft 2bbl carb was, that came stock on a 351 cleveland. There are numbers on the side of the carb that say: M91239

Here is a picture of the carb:

http://forums.mustangworks.com/attac...&postid=197236

And does anybody know how to tune the carb for better performance? Thanks

71grande · 12-02-2002, 12:15 AM

I know tis will seem lik an ignorant question, but are you sure that it is a MotorCraft?? I just checked in my Chilton and it shows either a autolite (which I have and hate..) or a MotorCraft. Both models are 2100, motor craft being 2100D....

as to tune up I could just re-type the section out of the book for you... If no one can give you good simple advise before tomorrow at noon or so, Ill type it out for you and Email it to you.

Mike

Metal396 · 12-02-2002, 01:07 AM

yeah the carb says motorcraft right on it.

That will work for me, what book is that you have? Tomorrow im also going to go through all my shop manuals and see what i can find, last time i checked i couldnt find anything on the carb...

thanks mike

Shaggy · 12-02-2002, 10:09 AM

I believe that hte Clevands came with the 500 cfm carb wouldn't swear to it though I know the big blocks did. if you will measure you throttle plate bore I will try and find some of my old 2-v's and measure the bore to see which is which 500 or 350.

12-01-2002, 08:18 PM	#1
Metal396 Registered Member Join Date: Jun 2002 Location: Southern California Posts: 109	Motorcraft 2bbl cfm I was wondering if anybody knew what cfm the motorcraft 2bbl carb was, that came stock on a 351 cleveland. There are numbers on the side of the carb that say: M91239 Here is a picture of the carb: http://forums.mustangworks.com/attac...&postid=197236 And does anybody know how to tune the carb for better performance? Thanks __________________ 1973 Mustang Coupe 351 cleveland 2v heads Edelbrock Performer Intake, Holley 600cfm carb Hooker Headers, 2.5 inch pipes, Magnaflow X-pipe, Flowmaster 2 chamber mufflers with turndowns. Stock Fmx tranny and 2.75 rear end My website:http://www.geocities.com/spddemontc User Rides Index: http://www.mustangworks.com/cgi-bin/...splay.cgi?2541

12-02-2002, 12:15 AM	#2
71grande Registered Member Join Date: Jul 2002 Location: San Clemente CA. Posts: 85	I know tis will seem lik an ignorant question, but are you sure that it is a MotorCraft?? I just checked in my Chilton and it shows either a autolite (which I have and hate..) or a MotorCraft. Both models are 2100, motor craft being 2100D.... as to tune up I could just re-type the section out of the book for you... If no one can give you good simple advise before tomorrow at noon or so, Ill type it out for you and Email it to you. Mike __________________ A great man once told me, "..." Well any way I guess that he wasn't that great. My garage: 1971 Mustang Grande, MSD6A, 625 Road Demon JR, Edelbrock Performer manifold, Hopes and Dreams... 1970 Norton 750 Commando 1993 Saturn SC2. The wifeys. fuzzy dice and all.

12-02-2002, 01:07 AM	#3
Metal396 Registered Member Join Date: Jun 2002 Location: Southern California Posts: 109	yeah the carb says motorcraft right on it. That will work for me, what book is that you have? Tomorrow im also going to go through all my shop manuals and see what i can find, last time i checked i couldnt find anything on the carb... thanks mike __________________ 1973 Mustang Coupe 351 cleveland 2v heads Edelbrock Performer Intake, Holley 600cfm carb Hooker Headers, 2.5 inch pipes, Magnaflow X-pipe, Flowmaster 2 chamber mufflers with turndowns. Stock Fmx tranny and 2.75 rear end My website:http://www.geocities.com/spddemontc User Rides Index: http://www.mustangworks.com/cgi-bin/...splay.cgi?2541

12-02-2002, 10:09 AM	#4
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	I believe that hte Clevands came with the 500 cfm carb wouldn't swear to it though I know the big blocks did. if you will measure you throttle plate bore I will try and find some of my old 2-v's and measure the bore to see which is which 500 or 350. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

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