i was wondering if anyone knew if a weiad 142 supercharger on top of a 350 would fit under a 2'' cowl hood on a 88 camaro?

 

The air cleaner is pretty close to the hood in stock form. You're not going to clear with a 2" hood unless the supercharger only adds 2" of height, but we know it adds more than that. Go bigger with the hood, or get busy with a saw.
http://www.thirdgen.org/weiand142install

 

Without knowing what the carb setup I can't say for sure, but I don't think 2" is going to cut it. Even a midrise intake with an edelbrock or holley and a drop base is really pushing a stock hood.