[EDNY]

[/quote]


Are you confident that the tranny is the problem and it's not a fuel delivery problem?
[/quote]  I just redid the fuel pump last year with hoses and a Holley red.  What are you thinking?
[/quote]

Maybe somebody else might jump in but if the trans was the problem I would think that the problem would be there even if the tranny was cold?  It appears that the situation is more like the symptoms of a choke cold idle issue? Now that the weather outside is cooler is the situation more evident than it was during Summer?

[themoose]

One more thing that you might consider is the valve body in the transmission. I have seen where a sticking valve can cause any number of conditions that might act like the engine is being pulled down due to incorrect shifting points or late downshifts. If the TV valve is sticking it can cause all sorts of problems one of which is incorrect part throttle downshift. Make sure you have the correct geometry at the carburetor to control the cable and valve. The best way to test TV and valve body functions is with a pressure gauge. I don't know how familiar you are with the TV system on the 200r4 but here's a link to Bowtie Overdrives that goes into great detail on the subject.It might be worth a look

Bowtie Overdrives TV 101

[munch]

I am running a Bowler Tru-Shift system https://bowlertransmissions.com/p/64/tru-shift-throttle-correction-arm-system
I have also sent them a question about this.  Like I said it disappears after a few miles, so it doesn't keep me from driving, just annoying.