<span style='color:blue'>1. Weight? What would this do to the weight distribution of the car. Would the front be all assed out to the ground?</span>
Not sure, IIRC its less than 100lbs more than the KA...dono how much less
<span style='color:blue'>2. What all would I need? Engine mounts, brackets, ducktape, clothespins???</span>
Yes...not sure if you need engine mounts or not though <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt='

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<span style='color:blue'>3. Where could I locate an engine and upgrade parts??</span>
http://www.unstable-hybrids.com
<span style='color:blue'>4. Emissions? I know it wouldn't pass but what would I have to do to make it legal?(btw I live in Houston)</span>
There is no possible way for the average person to make this engine swap legal. It would cost near $30,000 maybe more to do the emissions testing and buy the permit.
<span style='color:blue'>5. What would this do to the car? Running wise, would I only be able to drive this on the weekeneds due to the engine ripping a new ahole in the car?</span>
I'm not sure I know what your asking here. I sure as hell wouldn't want a motor that I just paid $10,000 to put in to be my daily (~60 miles a day+) driver <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>
The engine should be perfectly stable, but you'd have to be nuts to put a lot of miles on it.
Another way to be different would be to swap in a ca18det, rb20det, or rb25det. The rb26dett is the most difficult and most expensive swap I've heard of.
Edit: Actually
http://www.motorex.net already has the permit to legaly use the rb26dett. It would still be damn expensive and you'd have to take your car out to CA, but its a bit more doable.
The price tag on one of those permits is ~$27,000 BTW.