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Well most all seem to really like BobK's six pack cam. At least that's what I hear alot. Myself I run a Dwayne Porter cam in my 63's eng and I love it. But my eng is not a stock type 440 six pack either. Everyone I talk with that runs one of Dwayne Porters cams seem to love it. I talked a long...

Did you check to see if the power valve was actually blown when you pulled it out ? They dont blow out as easy as some think is why I ask. I run my car in the winter every now and then and I have had a few backfire's over the years starting it in colder weather. Not many but a few and it has...

You said you plugged the idle air bleeds with your finger and get no change. Is this on all three of the carbs ? Of course it should cause a change since you are blocking some idle circuit air. It should go richer and change the idle speed a little. But thats why I wonder if it does not change...

Thank you as thats one of the best pics I have seen of the drivers side 6 pk. You can just see the slotted link where the end carb rods go to. The linkage still hides alot of it. Ron

Here is the sloted link on the 6 pk setup just like the four barrel uses. This is the center carb and you can see the sloted link on the main shaft as the end carbs both hook to a link that ties into this slotted link. Ron - - - Updated - - - Here is the end carb as it has no acell pump...

I cant see that being right since the 4 barrel does have a mechanical back up and the 6 pk would have to have a slotted type of mechanical linkage where it lets the vacum open the carbs when you nail the gas as the vacum pulls its link through the slot and when open it hits the end of the slot...

Most of the ones I worked with were vacum 4 barrel carbs which usually use the check ball which apparently you dont understand just how the check ball works and why its there. Its in plain writing that I posted that its only there to lift off its seat and release the vacum in the pod fast so...

The check ball is there because if they use the same size opening without the check ball they will open the same but they will stick open to long and not bleed the vacum out fast enough. The reason for the check ball is so it can lift off its seat and make the vacum port larger when you let off...

Holley has only ever showed just one check ball in their pics that I have. And it is really only so it closes fast enough by unseating and letting the vacum bleed out faster with the larger hole. They may have changed where the kill bleed ties in to the primary venturi vacum to eliminate the...

I cant see how on the four barrel the check ball should make the secondaries stick open as the reason for the check ball is for faster closing of them. I guess if the check ball was stuck and would not lift off the seat it could make them hang open longer. According to Holley on the four barrel...

Thanks for the in fo guys. Thats a nice 6pk article but they dont mention a check ball. All the Holley vac carbs have the kill bleed as the vac 4 barells have always used that setup even with the check ball as once the throttle blade opens on the vac side the kill blleds then helps hold it open...

Actually that is how Holley puts it for the four barrel carb so I thought they meant the same for the six pack setup. All of my work has been on four barrel vacum carbs as I just assumed they would do it the same on the 6pk since its vacum actuated and I was taught that about how they work many...

They should run off venturi vacum. Now on the 4 barrel vacum carbs the reason they use the check ball is because with the right size hole to make them open correct they wont bleed off fast enough and when you let off the gas they will stay open to long. So they use the check ball and make the...

But for sheer visual appeal, nothing beats a six pack or a multi carbed Hemi (especially at a show). EVERYBODY loves them!! Ah you forgot about this for awesome visual effect ! Ron

Some of the dyno test I saw had the six pack making almost as much hp as that eng did with the Victor intake and a 1000 hp carb. The six pack can make good power if set up right. The good single plane and carb is not always better then the six pack. Ron

Wow what an awesome Runner !! Ron

Here is another one of my favorite A12's. I believe its a members here. Ron

Great looking A12. Have fun with it. Ron

Welcome aboard. Thats one super fine 6pk Runner. Ron

Wow that looks great ! I love that color green on the A12 cars. Yes we need more pics of that sweet Mopar. Ron