Installing dual 94 carbs on a Model A ratrod

[Bruce Lancaster]

To clarify: The PV's open when vac drops below their set point, but the fuel available through them feeds into the same passage that delivers fuel from the main jets into the venturis. The venturis do not have enouh pressure drop to pull gas from main and PV circuits until a substantial amount of air is moving though.
The holes you see in your PV serve only to ley gas flow when the openings are fed by the valve...the actual metering of the gas (controlling the amount that can flow via the PV) is controlled by restrictions in the passage in the body casting that lead gas away from the valve. In effect, the gas delivery can be thought of as 2 small extra main jets opening up...any gas actually moving has to be pulled though by the pressur drop generated by venturi flow.
In any discussion of rh Ford 94's, there are people who seem to blame low speed problems on th PV when it is actually flowing nothing, and you even hear statements about them "dumping" in gas!

[Bruce Lancaster]

That must be the rare and expensive KR Wilson V-211 Stromberg Whacker!

[Al Bass]

the picture in post #35, how do you put intake manifolds on exhaust ports ? is it a special cam ? or cam timeing ?

[youngrodder1929]

Originally Posted by Al Bass

the picture in post #35, how do you put intake manifolds on exhaust ports ? is it a special cam ? or cam timeing ?

experimental cam shaft it must work pretty good they went over 150mph with it i think ?

[Jason in TX]

Anyone know if Bud Calicutt got his car running better?

[ken ct]

Sponsored Links (Register now to hide all advertisements)

Originally Posted by steve norcal

ive been told on 94's , that the trick is to block off the power valve & all will be good . if you want some work , i have a pair of 97's ! .................. steve

Well you were told wrong pal. ken ct.

[ken ct]

Originally Posted by steve norcal

ive been told on 94's , that the trick is to block off the power valve & all will be good . if you want some work , i have a pair of 97's ! .................. steve

Simply put 2 94's or 2 97's are realy too much carburation for a 4 banger. Word to the wise. ken ct.

[hemiphil]

I was just reading the above and It's all good info. I'm wondering if any can help me out with this. This is what I'm running A Simmons supper power head 6.1 compression and a Ansen intake. When I lay off the Gas 45-50 mph it back fires or just running at that speed It will start to back fire. The jets right now are 47's. Or Is it timming?

Thanks

[ken ct]

Im not even going to get into this.Good luck ken ct.

[hemiphil]

To complicated!!

[PC/SR]

I would first think leaky exhaust, either manifold or pipe connection.

[Mike V. Florida]

Originally Posted by hemiphil

I was just reading the above and It's all good info. I'm wondering if any can help me out with this. This is what I'm running A Simmons supper power head 6.1 compression and a Ansen intake. When I lay off the Gas 45-50 mph it back fires or just running at that speed It will start to back fire. The jets right now are 47's. Or Is it timming?

Thanks

While there are great people here on Ford barn have you also gone to the banger section in HAMB?

[klawockvet]

Originally Posted by Mike V. Florida

While there are great people here on Ford barn have you also gone to the banger section in HAMB?

Sure gets frustrating with the HAMB and Barn people. Ask a question on one and get referred to the other. There really are a some of us who have/want modified Model A's and don't want street rods or V8's. We just need to communicate with others who are like minded without a scolding from the purists on the Barn or the rodders on the HAMB who don't feel bangers are traditional hot rods. Rant over, now I feel better.

[Mike V. Florida]

Originally Posted by klawockvet

Sure gets frustrating with the HAMB and Barn people. Ask a question on one and get referred to the other. There really are a some of us who have/want modified Model A's and don't want street rods or V8's. We just need to communicate with others who are like minded without a scolding from the purists on the Barn or the rodders on the HAMB who don't feel bangers are traditional hot rods. Rant over, now I feel better.

One only has to read what the intent of the two forums are as written by the same owner of both to see where a thread belongs. The fact that the title of this thread speaks to rat rods shows that it is best served on a forum that "is dedicated to spreading the gospel of traditional hot rods and customs..."

[klawockvet]

Originally Posted by Mike V. Florida

One only has to read what the intent of the two forums are as written by the same owner of both to see where a thread belongs. The fact that the title of this thread speaks to rat rods shows that it is best served on a forum that "is dedicated to spreading the gospel of traditional hot rods and customs..."

Hmmm. Sorry to bother you guys on the Barn so much but when I have asked for help about transmissions, overdrives, carbs, and exhaust on the HAMB I get referred to the Barn. I will keep doing searches and hope to get the info I need but it seems a shame that there cant be a little leeway from those of you who cant stand anything but a pure restored original. Its kind of hard for us simpletons to know just what is acceptable on the barn as I see so much about fuses, circuit breakers, touring motors, overdrives, etc. etc. Maybe you should post the acceptable deviations for us stupid bastards.

[Gary in MN]

http://www.jalopyjournal.com/forum/s...d.php?t=821243

HI Klawockvet: Here is the Aug. Banger Meet on the H.A.M.B. you could ask your question there.

Gary in MN.

[Mike V. Florida]

Originally Posted by klawockvet

Hmmm. Sorry to bother you guys on the Barn so much but when I have asked for help about transmissions, overdrives, carbs, and exhaust on the HAMB I get referred to the Barn. I will keep doing searches and hope to get the info I need but it seems a shame that there cant be a little leeway from those of you who cant stand anything but a pure restored original. Its kind of hard for us simpletons to know just what is acceptable on the barn as I see so much about fuses, circuit breakers, touring motors, overdrives, etc. etc. Maybe you should post the acceptable deviations for us stupid bastards.

Not a bother!! If you re-read my post you will note that I did not say get lost. I simply stated "have you also gone to the banger section in HAMB?" You were the one that "attacked" us "purists".