What would a twin carb do to my mini? make it quicker?

It is possible that the small white connector block is a steering wheel control interface. Some vehicles, including the Mini Cooper, have steering wheel controls that allow the driver to control certain functions of the stereo, such as volume and track selection, without taking their hands off the wheel. If your Mini Cooper does not have steering wheel controls, the connector block will not be used.
If you are unsure about the function of the connector block, you can try looking for a wiring diagram for your car's stereo system. This may help you identify the purpose of the connector block and confirm that it is not needed. Alternatively, you can consult with a mechanic or dealership technician for further assistance

Utube quicker or forum

air transmission oil coolers lower oil temp by over 60%( more it the ambient temp is low) so yes they are the way to go
what is suggested is that you go to an accredited transmission specialist shop and get a kit made for mini cars and see how to fit it properly
They are not cheap( up to $500.00 aud ) but will ,save in transmission costs over time

the slow idle jet could be blocked if it is a carb same thing happened to me on a vw and mini 998 i stripped the carb and sprayed with a cleaner and lube after it worked fine for months after i find a petrol additive to lube the upper cylinders and valves helps on older cars

With some research, you should be able to find the bearing. But, ...why did it fail???

if you have done all of this you may have a bad crank sensor or the timing off or the timing belt give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

First***Stop using starting fluid*** It will destroy your engine.
To set up the carbs, you will need to buy a vacuum balancer. This is a device that will show you how much downdraft each carb has. You then, have to adjust the linkage, so that they are the same. After that, you will need to adjust the fuel mix.
All in all, if you're not experienced in this, it is best left to a carburator shop, not most garages.

Hmm I'd say the idle is not your issue (don't change it!). more likely your brakes are dragging or tranny is not engaging propery.

hi thee the easiest way to get these is call the dealer and go in you will have to prove that you own the vehicle

from the vehicle vin number they can get you a new set of keys
i have done this personnely

If you have a Mini that was buit pre 2006 i.e. a first gen Mini then your new steering wheel will not fit, you need to buy a 1st gen Mini 3 spoke steering wheel.

Akso, for issues regarding the airbag light DO NOT pay the dealer silly amounts of money to solve the problem. Please visit the following thread http://www.mini2.com/forum/first-generation-faults-fixes/130947-airbag-warning-light-petition-bmw-uk.html