Thoughts on the 670 holley

The off idle bog is real, I have the street avenger on my 340 duster. There is still play no matter how you adjust the arm on the accelerator pump. Other than that I can reach in the window and it will start right up and run it thru the rpm's just fine. The off idle stumble sucks tho. I've used vacuum gauge, double checked timing and it's the play in the arm on the avengers causing it. I can throw an edelbrock I have that I know works fine on it and it runs fine.

Not saying one is better than the other, just letting you know the issue I've ran into with the avenger.

Scott