Tony is absolutely correct-everybody gave excellent advice including him.
I have tested and rechecked all the major suggestions-I even changed all the
heims to brand new ones and checked geometry. Checked secondary links, springs, gas pedal, the works. Yes, I can wiggle a little, the shafts in the throttle bores but they're all the same.
If I haven't fixed it, I'm on the right track. Now you're all gonna groan when you read this. Because it's so basic that I missed it.
The idle speed screw on the
second carb. I took out 1 1/2 turns and added about 3/4 turn on the primary carb to maintain my 1000 rpm idle. The screw was holding the plate open to a fast idle. Now this doesn't explain how poking it made it come down but for sure it had an effect.The linkage to the second carb is progressive which means it would barely open when "poked".
Drove like a wildman on the back roads and stood on the Wilwoods.
1000 rpm each time, all temps normal.
I want to put more time on it but it's substantially better. Will get around to the bearings in the baseplates after I drive it a while.
Sincere thanks to all for well though-out replies. Now you guys know I'm a Bozo...