[Trans-Am Jim]

Turk:

I have basically the same motor; only difference is my CR is 10.5:1 and it has a slightly-more-than-mild cam.

I'm assuming you mean 570 CFM rather than 57 ;-)

After much trial and error, I've ended up with 60s on all jets. Car runs clean and strong.

About the burbling and popping on decel, it's probably due to the slip-fit on the header/side pipe connection. I've tried various high-temp silicones to seal the connection - all to no avail. They all deteriorate within a few days or weeks, depending on how much I drive the car.

Hope this helps -