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don't know how good the autos are but with the motor behind it i don't rekon it'd be that exciting

i think you sould spend a little time over the festive season and give the 'manual' thing a go, once you've got the hang of it i doubt you'll ever look back ... might even make 1200RC obsolete if you can do get it right

........ been a long day in the pub for work breakup .... so i'll apologise now for that one

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There is a govornor in the back of the trans, ususally in the extention housing. This uses a weight device that acts as a regulator, that balances hydraulic pressure against pressure that is controlled by the modulator valve. This valve is in turn controlled by the amount of vacuum in the manifold.

When you have the pedal down, manifold vacuum is low & the modulator pressure is high. The govornor needs to spin faster to allow the pressures to balance & for the upshift to occur. At light throttle, the modulated pressure is lower due to the modulator valve being under the influence of greater manifold vacuum. The driveshaft/ govornor will build up the right pressure at a lower speed & the upshift occurs earlier.

Flooring it at low speed drops the vacuum, & pushes up the modulator pressure, causing the trans to kick down. There is also an electric switch involved with the downshift function.
Some of these parts are shown in the Gregories manual, so have a squizz to see how it sort of works.

It's actually more complex than that but it's the simplest explanation I could come up with. In this instance, good vacuum equals good auto driving.

My partners lil 1200 auto goes great, its now got an a14, adelaide 1200 owners will appreciate willunga hill, and it doesnt struggle up that at all, i like the kickdown, my betterhalf doesnt, she doesnt like her daisy-car making that much noise
I say good on you DG! Go the auto 1200's!

Had a read of the manual what dodge man is saying is correct about the vacum diaphram assembly .the second one is your electric kick down switch>to make the auto more interesting to drive use a kick down switch from a vh/sle> mount this to your t/bar >how it works you can hit the switch when you want to launch from a slow speed put the foot down and it will shift down and take off >also good for coming into corners you can have sorta control over the down shift >DONT HIT THE DOWN SHIFT BUTTON AT HIGH SPEED IT WILL SHIFT DOWN AND SPIN YOU AROUND >Ive tried this on my commodore v8 trimatic workked great for towing i also had some work done to the gear gear box ...TRy TERRY at trans gears and diffs in thomastown hes pretty good wit autos cheers