New Holley Carb Won't Idle Down Enough!
Just installed a 570 holley street avenger on my 68 327 engine and I could not get the idle down enough so I had to retard the timing down to 4 degrees to get the idle right. I had it previously set at around 10 to 12. Because of this the car is running a little hot and has a slight stumble when I first accelerate. The throttle plates are not sticking and no matter how far down I push the throttles to close and with the screw all the way out it would not idle down unless I turned the dizzy. Any suggestions?
68 convertible 327 Ralley Green, White top, Deluxe Ivory interior, powerglide with white bumblebee stripe