I have a 79 camaro with a 350 and a quadrajet carb. It seems as though the secondaries are not opening, but I am not sure.Sitting the secondaries don't open when I rev the engine. How do you tell if they are working properly, and if they are not, how do they work and what can I do to fix them?
The secondaries will not open by reving the engine, as you will not produce enough vacuume. They need to have a load put on them, like when you take off, and stomp it. you can do a search here, or go to www.holley.com for more info. Hope this helps.
[This message has been edited by TOMSTV (edited 05-26-2001).]
It's true that the secondaries won't open by revving the car at idle. Stick a paperclip on the rod for the secondaries, then go for a drive and floor it. When you get back, check to see if the paperclip moved...if so, they are opening.
My69gofast, That's a great idea. I've been trying to think of a way to do that for years. I even considered a micro switch to turn on a light on the dash...lol..Great tip! http://hometown.aol.com/zz430droptop67rs/