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welcome to the club MS.

Its a common issue. Use the search here or any other forum and you'll see it's fairly common. If it still blows hot after clamping those hoses, you probably need a new compressor. Take it to a shop...

You can get a stock radiator from advance auto or something for a couple hundred bucks. Or get an LT1 radiator from ebay or something for around 80 bucks plus shipping. If you want to spend some...