Holley 1940 w/ Load-o-matic?

[jtan540]

The current setup I have, and that came with my six, is a Holley 1940 connected to a non-emission Load-o-matic distributor. Is this an incorrect setup? I have read the Autolite 1100 with SCV is the correct carb for the LOM distributors.

 

[bubba22349]

Correct a Autolite 1100 and the older Holley 1904 will both work with a LOD. The 1940 would work with a 68 up distrib.

 

[cballard1972]

I recently went through this with my 65 falcon. Someone replaced the carb with a Carter RBS. I replaced it with a 68 distributor yesterday. Haven't finished the swap yet, but will post on how it works out.

 

[jtan540]

And here I thought I had worked out all the kinks...Now I am thinking of going electronic, would the Duraspark mate with the Holley 1940 I have? Maybe even the Pony Carbs version of the Autolite 1100? Are they(Vaporizer) really all they're cracked up to be?

 

[mugsy]

When I bought my Mustang in '97 it had a 1940 with the SCV. So just because it's a 1940 doesn't mean it's for the dual advance dizzy. The 1940 came both ways; I just bought a non-LoM 1940 from another member here last month.

 

[jtan540]

How do I tell if it is the SCV version or the non-SCV 1940? I believe the tag on it says D0PF...

 

[Frankenstang]

How do I tell if it is the SCV version or the non-SCV 1940? I believe the tag on it says D0PF...

AFAIK the 1940 is referred to as a Ford 'Service Replacement' Carb...

That's why the remark in this picture lifted from Pony Carbs states, "Never factory installed on any vehicle". It's basically a carb originally offered through the ford part houses or dealerships to replace stock 1v's.

Reviews on it seem to be mixed. Some folks swear by 'em, others at 'em
As mugsy mentioned, they were available in SCV and non-SCV versions...the former being more rare (I think?). David Schjendahl (sp?) aka CZNL6 and co-author of the FSPH is who I defer to with most carb questions, so you might search some of his old posts or search posts for "1940 scv"...I know the subject has come up at least once before. IIRC the red circle in the pic is where you should see an scv valve

or if there is not one there, it should be threaded for one.

EDIT: As far as the Pony 'Vaporizer' goes it can be a touchy subject, and I'm certainly not trying to stir anything here (there are plenty of previous posts..search 'vaporizer', 'pony' or some such)...I think either it's too early to tell and/or results are too mixed there as well. I know some people have had some horrible experiences with Pony, as I recall mugsy's experience was completely different from mine (no offense mugsy). In general I don't think they'll be winning any awards for 'outstanding customer service', and they definitely had production issues with early 1100V's...which supposedly have been worked out. Best I can say about my vaporizer so far is...~23mpg on a mostly highway tank averaging 65+mph...but I also have to address a current rich @ idle situation on a "new" carb that is only 2-3 years old w/o a ton of miles (likely a float adjustment, and a re-jet and possible needle/seat while I'm in there). My choice for the vaporizer was/is a looong term commitment...and it will have to be, to drive out even part of the difference in cost. So far the acceloration and lack of flat spots has been a consistent good, but the mileage is no better than I've manage out of previous standard 1100's over the years. Good luck!

 

[mugsy]

No offense taken... Obviously Pony is still in business so they haven't totally upset every one of their customers and at least SOME of their plroducts work as advertised. Like most things in life: yous pays yer money; yous take yer chances...

I think with the 1940 the lead numbers are all "DOPF"... or I should say the two I have have the same prefix number. And one is a small bore with the SCV and the other is the large bore without the SCV. The last digit after the dash is different between the two.