The crazy1 is correct but I doubt its the disk or pressure plate. Most likley (not in any order) pilot bearing, throwout bearing, improperly machined flywheel, or check the cable to see if its an adjustable one make sure its not out of adjustment.
I'm gonna agree with most of this, if I was to build this I would get the EFI spider intake setup. The lightning MAF(on ebay it's like $80) www.massair.com obd1 to obd2 adapter harness, possibly convert the harness to a fox harness get either an A9L or a cobra computer X3Z. Try to get a JLT...
With all the new kits out on the market you won't have to hack up fenders or anything like that, unless you are running some monsterous size wheels and or tires.
If on a budget now put a stock setup back in the car then save up and build the block with the 99 heads and your gonna have to run the 99 intake as well. Look up boss 330 racing and he should be able to get you what you want.
P&P heads and intake, FR500 or custom grind cams. Have a custom tune done by someone knowledgeable with the predator software. I would like to know how you got a STB on with your JLT cai (pics would be nice). When you say stock internals you wouldn't be talking about the rotating assembly would...
That sounds like the throttle body. Usually the larger you go with the throttle body the louder the wistle. I personally had a 70mm and it was loud but another friend of mine had a 75 and it was twice as loud as mine. Have you driven the car around to see if it does it cruising around?
Your in South Florida, up here we've got wayne akers and they deal with SVT products # is (561) 582-4444. Try them see if someone will deal with him ask for frank in parts, he should be able to help him out.
The way you describe the overheating issue it sounds as if you have a faulty thermostat. I had the same issue a week ago, replaced the thermostat and all is well now. Check the upper radiator hose with the car when it starts getting hot by giving it a squeeze to see if it's pressurized. The temp...