Setting 6 Pack Carbs

would it be possible to run each carburetor to set float level and idle mixture screws on a small block ?

[quote=4spdana]would it be possible to run each carburetor to set float level and idle mixture screws on a small block ? [/quote

Are you referring to running one only and blocking the other two manifold ports ?

Yes you can, but you will need to swap the front and rear carbs to set the idle mixture on the rear carb while running the motor
I can't remember now if the jetting and bleeds are identical on both of the outboard carbs now or not, if they both have the same list # stamped on the rear of passenger side barrel under the air cleaner horn lip there the same carb, if different there they are meant to be a front and rear carb

i was suggesting running each carburetor by its self on a different engine ( 440 has been rebuilt and needs the camshaft broke in)

So lets get this straight. Is the 440 that needs the cam broke in a 6 pack? Have the carbs been rebuilt? Really the only carb that has to be close is the center to break in a cam. One would think that setting the carbs up on a 340 and then moving them to a 440 wouldn't be close. Like I said I doubt you will be breaking in the cam with the secondarys doing any more than idle circuits.

You can't run the end carb by itself on another engine,you have no accelerator pump or idle speed adjustment,anything you would try would be hit and miss at best.Switch them front to back as suggested by Cab,you may have to do more than once but eventually you get it.

Also,read this!

I recommend the PROMAX six-pack base throttle plates... allows adjustment easily without having to remove the carbs... the way the factory/Holley should've done it.

And, you only need one, for the back carb...

Joe

Not really sure what your question is, or why.

But I think the answer is No.

Maybe the original 6 pak carbs were turned out a lot more than late replacement holleys, but mine needed way more than 1/8 turn from stock to idle well. IIRC fthe replacement end carbs come preset - 1/2 to 3/4 turns out on the hidden idle mixture screws. Mine idled best with all 3 carbs setting their mixture screws 1 5/8 turns out from all the way in. If I were doing a new set I'd start there, and do the 'finger over the air bleed' trick to see whether it's lean or rich.

I've found the amount of turns ( 1/4 to 2 ) vary depending on application,also any engine modifications changes the whole picture.