Gold Lifetime Member
Join Date: Jan 2007
Location: Braselton, Georgia
Street Avenger Fast Idle sticking
I was hoping to get some help from some experienced folks. I searched the forums and couldn't find anything similar to my issue so I thought I'd see if one of you may have an answer.
I have 69 Camaro, 350, Edelbrock RPM heads, Lunati 268 cam, Air Gap Intake, Pertronix ignition, headers, and a 670 Street Avenger. I've always had issues with the idle but got those resolved with a new power valve. This is the issue I'm having:
The car has a 670 Street Avenger, electric choke. The choke setting is to the right of the center. When I crank the car, it fires right up and idles at 1500 rpm, just like it's supposed to. But when I drive it around for 10 miles or so, the car is idling around 1000 rpm and the fast idle cam is still engaged. I can push it down and then it idles around 750, which is what I want.
I talked to Holley about this and we verified I have 12 volts going to the electric choke (power from the windshield wipers). Holley said there was too much pressure on the spring and advised me to pull the two stop pins out, loosen the three screws on the choke, hold the throttle open over 1/2 way, turn the choke until the choke plate is fully open, and the back it back until it shuts. Then tighten the screws.
I did this and the car started with me holding the accelerator open. After I got the car warmed up and let off the gas, the fast idle cam dropped off but the car now idles at 500 rpm. I couldn't live with this without having a choke. So I called Holley back and they told me to move it 1/2 way between where I originally had it set and the new spot. I did this. The car cranked up, choke engaged, but idles at 1200 rpm instead of 1500. And when it warmed up sufficiently, I reved the motor and the idle dropped to 1000 with the fast idle cam still engaged. When I pushed the fast idle cam down, the idle dropped to 600 rpm.
I know this is lengthy, but I'm hoping to gain from some of your experiences. Any thoughts on what may be wrong? It appears that if I want to have some semblance of choke, the fast idle is going to stick.
Any help on fixing this carb would be appreciated.