Having problems with your Chevrolet Chevette ?

I have a 82 k10 with a 350ci and dart aluminum heads and intake its a dart II intake with a 750 edlebrock carb i need to know the vacume hose set up for those caponits a diagram for this would be great

Posted / edited by AnonymousUser on : 20-11-2017

Answers :

Find a vacuum "tree" (fitting with several connections that will screw right into the manifold). You can feed the distributor and the A/C dash controls from that. There should also be a fitting on the rear of the carb baseplate you can attach the power brake booster to (if needed) Make sure you cap off the vacuum port on the passenger side of the front metering block. It's "ported" vacuum and you don't really need it. Same goes for the port under the passenger right side front of the carb... block it off or connect that to the distributor instead of using the tree. I use that one for vacuum gauge attachment for tuning the carb. On a modified engine, about the only other item you may want to hook up is a pcv valve. That can be attached on a "t" to the hose for the brake but generally better to attach it directly to a fitting on the manifold. If you don't use a pcv, make sure that the valve covers are vented (I use Chrysler can type vents, commonly found on older 318's and 340"s) The remainder of the emission system can be scrapped unless you're compelled by law to keep it. On a modified system, it's pretty much useless anyhow.
I hope you also installed a good set of headers and a decent cam in there. It would be a shame to waste the potential of those heads. Only thing I don't totally agree with is the 750 carb. You'd probably do better with a 650 with vacuum secondaries. It doesn't sound as impressive but the 750 is a bit large unless you have the cam to make it work. (but probably too radical for the street)
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