Six pack secondary paper clip test?

Kllrbee said
1) I could try lighter springs. I do have the heaviest springs installed, but even so, shouldnt they open at some point. I mean when I floored it in 1st, I really tore loose

Take a look again at the snip from Holley about how much difference in opening rpm the springs made in their tests of two engines.

My experience with a .060 over 340 and a modified 3310-3 was the black spring prevented opening until very high rpm (for that engine).
I'll dig out the screenshots in minute

Kllrbee said
2) The kill bleeds have been enlarged at some point. I doubt this very much, but it could cause this right? Also, when I removed the diaphragm to check the springs, I checked the bleeds to make sure they werent clogged or something with a very small paper clip. No problem, came right out into the body.
3) Something is blocking the venturi vacuum from the center carb. A gasket shifted or shrunk over time plugging up the port? Either way, Ill get in there and rebuild them, they are due anyways.

If you have shop air, you can direct it past the signal tube in the center carb.
Or if you just want to check for good connection in the carb, shoot some carb cleaner through. Just keep it away from rubber parts.