So I took the carb apart just now and guess what I found in the fuel bowl? Metal debris. small as a grain of sand but no smaller. just enough to....keep the needles from closing. Which would also explain why I had to adjust the idle a few times after this all started. Will update with the results.

It is aluminum. not steel. One thing i didnt mention was the car tried to go through the garage over the weekend. Just trying to get it back in there at idle-low throttle and whoomp 4k. came within about 2 feet of the inside back wall. I checked everything after shut off and found nothing. No stuck throttle cable. This all tells me that it has to be whats in the fuel bowl right now.

Well, metal everywhere...in the nozzles, tapped it and metal just fell out of them. I think its time for a Holley.

debris holding a needle open isn't going to make you spike to 4,000 rpm. you need AIR to match that gas, or you go rich maybe stalling out if it's TOO rich and you flood it.

but, if you have metal everywhere, and the carb is starting to wear out, maybe the butter flies were sticking open because they're worn out?

I see nothing that would jamb open with the linkage you posted pics of.

So I'm sure now what it is. Broken motor mount. I know it was previously suggested and should have checked better. From a stop the front drivers side lifts up and slams back down hard as of the last few days. I knew exactly what to check....the left engine mount. Jacked the car up and put it on stands and lifted the engine with a jack. The mount is completely cracked and separated. I think there was just too many problems that compounded the WOT problem. Thanks to everyone.

FuryUs:

Quote:

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Broken motor mount allowing it to move and bind up?

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To give credit for a right on the mark answer.
And to everyone else for the throttle and kickdown setup issues, thanks.