AVS2 tuning

In my opinion, you are over carbed. The 650 would be much more suited for your application.

Between the 650 down on power, and the 800 running like poop, leads me to the question, why did you switch from the Holley ?

AVS had better low end driveabilty , holly better top end power . I still have 4 Holleys . This is a learning excersize... I could have just slapped the 800 on out of fhe box and 99% would think it runs just fine but I wanted to maximize its efficiency and learn more about the details of tuning Carters
I mean if I just wanted a car to drive I would buy a new Honda Accord .

I still stand by my original comment that the perception that these carbs are easy to tune is wrong. I spent more time looking for one of the tiny sprongy clips last night than I would have rejetting a Holley ...lol