440 six pack carbs

[1969superbee]

I'm sure this has been discussed before, but what is the difference between auto and manunual six pack carbs. I have a four speed manual. What carbs do I need to buy?

 

[Beekeeper]

I'm not real verse on six pack carbs but believe the main difference is manual outboard carbs are mechanical and the auto is vacuum

 

[lewtot184]

manual and auto are vacuum secondaries. the difference is in air bleeds, idle feed, nothing to get lost in. the aftermarket carbs are all pretty much the same internally. the 340 carbs have some snivies on the secondary boosters and maybe some minor calibration changes from the 440.

 

[rumblefish360]

The 340 rear outboard carb has a distribution tab on the passenger side.
All other differance's are jetting.

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The 340 rear outboard carb has a distribution tab on the passenger side.
All other differance's are jetting.