the above picture is your average motor mount for a SR20/KA blah blah

As you can plainly see there is a big rubber block with a stud that appears to run through it.

Either side has a nut on the end. The top nut unbolts the motor mount from the motor and the bottom nut removes the motor mount from the car itself. you can either 1) Remove the top nut and pull the motor out of the car leaving the mounts in the car or you can 2) Unbolt the bottom nut from underneath the car and remove the motor mounts with the motor. (WARNING) The nuts round off very easy if done improperly so i recommend you use caution while un-doing these nuts because if you strip it you will have a very hard time getting it of unless you have a saw-zaw and a lot of free time.

The highest boost you can run on an SR20 without a tune is 12 lbs. i do not reccomend doing this however until you have the money for a respecable tune. There are many horror story where people up the boost using a manual or electronic boost controller and it spikes boost and ruins your motor or detonates melting your piston heads. However it will be the best 30 seconds of your life when your SR decides to haul ass at 20 pounds of boost -.-

I hope youre not planning on tuning this yourself. i would recommend going to a shop and having it done properly. it may cost a pretty penny but its cheaper then a new SR.

A KA Trans will hook up to an SR bell housing allowing you to use your KA shifter if that is what youre asking.

There is much Speculation on what the stock SR block can handle. I have yet to take my block this far and i dont know anyone at the moment that has but the most common answer i receive is around 500 WHP. but i have heard tales of over 600 from glen at vision performance. *Shrug*

No SRs do not use a MAP sensor.... why would you ask in your first question if "The MAF isnt reading" If the car has a MAP sensor?

I hope i was helpful.