1970 Big Block Carb 7040205

[ddmrk]

nice used core good for rebuild 1970 Big Block Carb 396-454 4spd 7040205 date 233 9
asking $695 plus shipping

[ddmrk]

NEW PRICE $650 Shipped in lower 48

[ddmrk]

<span style="font-size: 11pt"><span style="font-style: italic"><span style="font-weight: bold">New Price before ebay $ 625 shipped </span></span></span>

[XXXGoldL34M20]

What happened to the manual idle adjuster that came on this carb?

[Plowman]

I think I see it in the first picture,it's head can be seen going from the front level horizontal position,from what I can see,not good picture, so I don't know.

[XXXGoldL34M20]

See photo
Date will be August 21 1969 which is the 233th day of 1969.

[Plowman]

I see that hole with a screw with a slotted head{idle screw}. Mamual idler adjuster thing ,no.

[VintageMusclecar]

That's called a de-acceleration valve, was used on some manual trans QJets. Works on the same principals as the Ford anti-stall dashpots. Hard item to find, expensive when/if you can find one.

[XXXGoldL34M20]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Plowman</div><div class="ubbcode-body">I see that hole with a screw with a slotted head{idle screw}. Mamual idler adjuster thing ,no. </div></div>

Hey Paul
Did not know how to call that part but i do know if you need to get it, it will set you back $75 to $100, maybe even more.
I had 2 spares when i had my L34 Chevelle SS396 and i sold both of them real quikly after i sold my car a few years back.
Just trying to suggest that if you do buy this type of carb, get it with the de-acceleration valve.
Thanks Eric for letting us know what that part is called.

[Plowman]

That is good info,thanks.