I need to know where all the vacuum lines should go on a 1405 Edelbrock carb. I have two pcv valves and I don’t know where there supposed hook up. The motor is from an 82 truck. Any pics would help thank you


I also have a canister

 

PCV should be hooked up to manifold vacuum, and your canister control should be ported vacuum, but the vent should be in manifold vacuum ports.

 

hey thanks man but that didnt help. where is the manifold vacuum hook up and i have know idea about the canister control should be "ported vacuum"?. i need to know where to hook up the PCV to the carb.. and sorry if i sound like an ***, i dont mean to.

 

no worries, i guess i didn't fully understand your question. Here is how to find out which port is which.

With the engine idleing, just check vacuum at each port, if you have a strong vacuum signal, you are at a manifold vacuum port, if it is weak, open the throttle more. If it gets stronger, that is a ported vacuum source. Check out this thread that I replied to earlier. It explains the vacuum types a bit more.
https://www.thirdgen.org/techbb2/sho...hreadid=287022

Hope this all helps you out.

Most times, the manifold port will be larger and towards the base of the carb. It should say in the instruction manual of the carb. If you dont have that, go on edelbrocks web site. I am sure you can view one from their site.

 

hey thanks man that really helped me out alot . thank you