AVS rebuild issues

You sure you didn't lose a check ball for the pump? What makes you think it IS the pump? float levels?

I'm pretty sure but since I'm old I forgot. When I take it down again I'll check.
When I rebuilt it I followed the instructions and put everything including the floats to spec. But then again, I'm old.:D

What I get when the engine is off and I hit the throttle is a squirt on both sides. But, if I give a partial throttle then hit it full I get a dribble. That's what's causing the stumble which when the engine is cold will stall it out.

Thanks for all the help y'all givin me here. It's nice to get this dart back on the road even though it needs a little more tweaking.