May purchase 65 Barracuda

I believe they make a "lead substitute" for our older engines, however I've been running the new stuff (87 octane unleaded) in my slant six's with out difficulty. I ran unleaded gas in my V8 Commando before I sold it and don't remember any difficulty. But lately there has been a lot of talk about what unleaded does to the older engines. Most people who are going to hot rod them now, will go to hardened valve seats and different valves. I'm sure there will be some more comments about the type fuel and disadvantages of the unleaded fuel to follow. Have fun with your Barracuda, I have two 65s that are in a restoration mode.