Need Help

[REVEL8R]

I'm looking at a 1971 Chevelle to buy everything looks pretty and runs pretty good. Now I'm not an expert on automotive repairs, but I'm not a complete idiot the car is solid but not in excellent condition. The only thing that bothers me is when you start the car (which the car starts great on one turn) it makes a squeaking sound for like 2-3 seconds and then when you push on the gas it squeaks the first 2-3 times and then it goes away. Could that be a belt or pulley or barring? or is there something more hidden here? Here is short video of the car if you could listen for the squeak and give me some feedback it would be much helpful, also if you notice any other major flaw let me know.

http://www.youtube.com/watch?v=MiuYs...layer_embedded